20643668640

素因数分解:

$2^5\times 3^3\times 5^1\times 7^2\times {\mathrm{97523}}^1$

素因数の和:97561

約数の個数: 288

約数和(自身を含む): 84050084160

約数和(自身を除く): 63406415520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 160, 168, 180, 189, 196, 210, 216, 224, 240, 245, 252, 270, 280, 288, 294, 315, 336, 360, 378, 392, 420, 432, 441, 480, 490, 504, 540, 560, 588, 630, 672, 720, 735, 756, 784, 840, 864, 882, 945, 980, 1008, 1080, 1120, 1176, 1260, 1323, 1440, 1470, 1512, 1568, 1680, 1764, 1890, 1960, 2016, 2160, 2205, 2352, 2520, 2646, 2940, 3024, 3360, 3528, 3780, 3920, 4320, 4410, 4704, 5040, 5292, 5880, 6048, 6615, 7056, 7560, 7840, 8820, 10080, 10584, 11760, 13230, 14112, 15120, 17640, 21168, 23520, 26460, 30240, 35280, 42336, 52920, 70560, 97523, 105840, 195046, 211680, 292569, 390092, 487615, 585138, 682661, 780184, 877707, 975230, 1170276, 1365322, 1462845, 1560368, 1755414, 1950460, 2047983, 2340552, 2633121, 2730644, 2925690, 3120736, 3413305, 3510828, 3900920, 4095966, 4388535, 4681104, 4778627, 5266242, 5461288, 5851380, 6143949, 6826610, 7021656, 7801840, 8191932, 8777070, 9362208, 9557254, 10239915, 10532484, 10922576, 11702760, 12287898, 13165605, 13653220, 14043312, 14335881, 15603680, 16383864, 17554140, 18431847, 19114508, 20479830, 21064968, 21845152, 23405520, 23893135, 24575796, 26331210, 27306440, 28086624, 28671762, 30719745, 32767728, 35108280, 36863694, 38229016, 40959660, 42129936, 43007643, 46811040, 47786270, 49151592, 52662420, 54612880, 57343524, 61439490, 65535456, 70216560, 71679405, 73727388, 76458032, 81919320, 84259872, 86015286, 92159235, 95572540, 98303184, 105324840, 109225760, 114687048, 122878980, 129022929, 140433120, 143358810, 147454776, 152916064, 163838640, 172030572, 184318470, 191145080, 196606368, 210649680, 215038215, 229374096, 245757960, 258045858, 286717620, 294909552, 327677280, 344061144, 368636940, 382290160, 421299360, 430076430, 458748192, 491515920, 516091716, 573435240, 589819104, 645114645, 688122288, 737273880, 764580320, 860152860, 983031840, 1032183432, 1146870480, 1290229290, 1376244576, 1474547760, 1720305720, 2064366864, 2293740960, 2580458580, 2949095520, 3440611440, 4128733728, 5160917160, 6881222880, 10321834320, 20643668640]

約数ペア:

[(1, 20643668640), (2, 10321834320), (3, 6881222880), (4, 5160917160), (5, 4128733728), (6, 3440611440), (7, 2949095520), (8, 2580458580), (9, 2293740960), (10, 2064366864), (12, 1720305720), (14, 1474547760), (15, 1376244576), (16, 1290229290), (18, 1146870480), (20, 1032183432), (21, 983031840), (24, 860152860), (27, 764580320), (28, 737273880), (30, 688122288), (32, 645114645), (35, 589819104), (36, 573435240), (40, 516091716), (42, 491515920), (45, 458748192), (48, 430076430), (49, 421299360), (54, 382290160), (56, 368636940), (60, 344061144), (63, 327677280), (70, 294909552), (72, 286717620), (80, 258045858), (84, 245757960), (90, 229374096), (96, 215038215), (98, 210649680), (105, 196606368), (108, 191145080), (112, 184318470), (120, 172030572), (126, 163838640), (135, 152916064), (140, 147454776), (144, 143358810), (147, 140433120), (160, 129022929), (168, 122878980), (180, 114687048), (189, 109225760), (196, 105324840), (210, 98303184), (216, 95572540), (224, 92159235), (240, 86015286), (245, 84259872), (252, 81919320), (270, 76458032), (280, 73727388), (288, 71679405), (294, 70216560), (315, 65535456), (336, 61439490), (360, 57343524), (378, 54612880), (392, 52662420), (420, 49151592), (432, 47786270), (441, 46811040), (480, 43007643), (490, 42129936), (504, 40959660), (540, 38229016), (560, 36863694), (588, 35108280), (630, 32767728), (672, 30719745), (720, 28671762), (735, 28086624), (756, 27306440), (784, 26331210), (840, 24575796), (864, 23893135), (882, 23405520), (945, 21845152), (980, 21064968), (1008, 20479830), (1080, 19114508), (1120, 18431847), (1176, 17554140), (1260, 16383864), (1323, 15603680), (1440, 14335881), (1470, 14043312), (1512, 13653220), (1568, 13165605), (1680, 12287898), (1764, 11702760), (1890, 10922576), (1960, 10532484), (2016, 10239915), (2160, 9557254), (2205, 9362208), (2352, 8777070), (2520, 8191932), (2646, 7801840), (2940, 7021656), (3024, 6826610), (3360, 6143949), (3528, 5851380), (3780, 5461288), (3920, 5266242), (4320, 4778627), (4410, 4681104), (4704, 4388535), (5040, 4095966), (5292, 3900920), (5880, 3510828), (6048, 3413305), (6615, 3120736), (7056, 2925690), (7560, 2730644), (7840, 2633121), (8820, 2340552), (10080, 2047983), (10584, 1950460), (11760, 1755414), (13230, 1560368), (14112, 1462845), (15120, 1365322), (17640, 1170276), (21168, 975230), (23520, 877707), (26460, 780184), (30240, 682661), (35280, 585138), (42336, 487615), (52920, 390092), (70560, 292569), (97523, 211680), (105840, 195046)]