21500640

素因数分解:

$2^5\times 3^5\times 5^1\times 7^1\times {\mathrm{79}}^1$

素因数の和:116

約数の個数: 288

約数和(自身を含む): 88058880

約数和(自身を除く): 66558240

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, 54, 56, 60, 63, 70, 72, 79, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 158, 160, 162, 168, 180, 189, 210, 216, 224, 237, 240, 243, 252, 270, 280, 288, 315, 316, 324, 336, 360, 378, 395, 405, 420, 432, 474, 480, 486, 504, 540, 553, 560, 567, 630, 632, 648, 672, 711, 720, 756, 790, 810, 840, 864, 945, 948, 972, 1008, 1080, 1106, 1120, 1134, 1185, 1215, 1260, 1264, 1296, 1422, 1440, 1512, 1580, 1620, 1659, 1680, 1701, 1890, 1896, 1944, 2016, 2133, 2160, 2212, 2268, 2370, 2430, 2520, 2528, 2592, 2765, 2835, 2844, 3024, 3160, 3240, 3318, 3360, 3402, 3555, 3780, 3792, 3888, 4266, 4320, 4424, 4536, 4740, 4860, 4977, 5040, 5530, 5670, 5688, 6048, 6320, 6399, 6480, 6636, 6804, 7110, 7560, 7584, 7776, 8295, 8505, 8532, 8848, 9072, 9480, 9720, 9954, 10080, 10665, 11060, 11340, 11376, 12640, 12798, 12960, 13272, 13608, 14220, 14931, 15120, 16590, 17010, 17064, 17696, 18144, 18960, 19197, 19440, 19908, 21330, 22120, 22680, 22752, 24885, 25596, 26544, 27216, 28440, 29862, 30240, 31995, 33180, 34020, 34128, 37920, 38394, 38880, 39816, 42660, 44240, 44793, 45360, 49770, 51192, 53088, 54432, 56880, 59724, 63990, 66360, 68040, 68256, 74655, 76788, 79632, 85320, 88480, 89586, 90720, 95985, 99540, 102384, 113760, 119448, 127980, 132720, 134379, 136080, 149310, 153576, 159264, 170640, 179172, 191970, 199080, 204768, 223965, 238896, 255960, 265440, 268758, 272160, 298620, 307152, 341280, 358344, 383940, 398160, 447930, 477792, 511920, 537516, 597240, 614304, 671895, 716688, 767880, 796320, 895860, 1023840, 1075032, 1194480, 1343790, 1433376, 1535760, 1791720, 2150064, 2388960, 2687580, 3071520, 3583440, 4300128, 5375160, 7166880, 10750320, 21500640]

約数ペア:

[(1, 21500640), (2, 10750320), (3, 7166880), (4, 5375160), (5, 4300128), (6, 3583440), (7, 3071520), (8, 2687580), (9, 2388960), (10, 2150064), (12, 1791720), (14, 1535760), (15, 1433376), (16, 1343790), (18, 1194480), (20, 1075032), (21, 1023840), (24, 895860), (27, 796320), (28, 767880), (30, 716688), (32, 671895), (35, 614304), (36, 597240), (40, 537516), (42, 511920), (45, 477792), (48, 447930), (54, 398160), (56, 383940), (60, 358344), (63, 341280), (70, 307152), (72, 298620), (79, 272160), (80, 268758), (81, 265440), (84, 255960), (90, 238896), (96, 223965), (105, 204768), (108, 199080), (112, 191970), (120, 179172), (126, 170640), (135, 159264), (140, 153576), (144, 149310), (158, 136080), (160, 134379), (162, 132720), (168, 127980), (180, 119448), (189, 113760), (210, 102384), (216, 99540), (224, 95985), (237, 90720), (240, 89586), (243, 88480), (252, 85320), (270, 79632), (280, 76788), (288, 74655), (315, 68256), (316, 68040), (324, 66360), (336, 63990), (360, 59724), (378, 56880), (395, 54432), (405, 53088), (420, 51192), (432, 49770), (474, 45360), (480, 44793), (486, 44240), (504, 42660), (540, 39816), (553, 38880), (560, 38394), (567, 37920), (630, 34128), (632, 34020), (648, 33180), (672, 31995), (711, 30240), (720, 29862), (756, 28440), (790, 27216), (810, 26544), (840, 25596), (864, 24885), (945, 22752), (948, 22680), (972, 22120), (1008, 21330), (1080, 19908), (1106, 19440), (1120, 19197), (1134, 18960), (1185, 18144), (1215, 17696), (1260, 17064), (1264, 17010), (1296, 16590), (1422, 15120), (1440, 14931), (1512, 14220), (1580, 13608), (1620, 13272), (1659, 12960), (1680, 12798), (1701, 12640), (1890, 11376), (1896, 11340), (1944, 11060), (2016, 10665), (2133, 10080), (2160, 9954), (2212, 9720), (2268, 9480), (2370, 9072), (2430, 8848), (2520, 8532), (2528, 8505), (2592, 8295), (2765, 7776), (2835, 7584), (2844, 7560), (3024, 7110), (3160, 6804), (3240, 6636), (3318, 6480), (3360, 6399), (3402, 6320), (3555, 6048), (3780, 5688), (3792, 5670), (3888, 5530), (4266, 5040), (4320, 4977), (4424, 4860), (4536, 4740)]