20940949680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{9323}}^1$

素因数の和:9544

約数の個数: 240

約数和(自身を含む): 75919140864

約数和(自身を除く): 54978191184

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 191, 196, 210, 240, 245, 280, 294, 336, 382, 392, 420, 490, 560, 573, 588, 735, 764, 784, 840, 955, 980, 1146, 1176, 1337, 1470, 1528, 1680, 1910, 1960, 2292, 2352, 2674, 2865, 2940, 3056, 3820, 3920, 4011, 4584, 5348, 5730, 5880, 6685, 7640, 8022, 9168, 9323, 9359, 10696, 11460, 11760, 13370, 15280, 16044, 18646, 18718, 20055, 21392, 22920, 26740, 27969, 28077, 32088, 37292, 37436, 40110, 45840, 46615, 46795, 53480, 55938, 56154, 64176, 65261, 74584, 74872, 80220, 93230, 93590, 106960, 111876, 112308, 130522, 139845, 140385, 149168, 149744, 160440, 186460, 187180, 195783, 223752, 224616, 261044, 279690, 280770, 320880, 326305, 372920, 374360, 391566, 447504, 449232, 456827, 522088, 559380, 561540, 652610, 745840, 748720, 783132, 913654, 978915, 1044176, 1118760, 1123080, 1305220, 1370481, 1566264, 1780693, 1827308, 1957830, 2237520, 2246160, 2284135, 2610440, 2740962, 3132528, 3561386, 3654616, 3915660, 4568270, 5220880, 5342079, 5481924, 6852405, 7122772, 7309232, 7831320, 8903465, 9136540, 10684158, 10963848, 12464851, 13704810, 14245544, 15662640, 17806930, 18273080, 21368316, 21927696, 24929702, 26710395, 27409620, 28491088, 35613860, 36546160, 37394553, 42736632, 49859404, 53420790, 54819240, 62324255, 71227720, 74789106, 85473264, 87253957, 99718808, 106841580, 109638480, 124648510, 142455440, 149578212, 174507914, 186972765, 199437616, 213683160, 249297020, 261761871, 299156424, 349015828, 373945530, 427366320, 436269785, 498594040, 523523742, 598312848, 698031656, 747891060, 872539570, 997188080, 1047047484, 1308809355, 1396063312, 1495782120, 1745079140, 2094094968, 2617618710, 2991564240, 3490158280, 4188189936, 5235237420, 6980316560, 10470474840, 20940949680]

約数ペア:

[(1, 20940949680), (2, 10470474840), (3, 6980316560), (4, 5235237420), (5, 4188189936), (6, 3490158280), (7, 2991564240), (8, 2617618710), (10, 2094094968), (12, 1745079140), (14, 1495782120), (15, 1396063312), (16, 1308809355), (20, 1047047484), (21, 997188080), (24, 872539570), (28, 747891060), (30, 698031656), (35, 598312848), (40, 523523742), (42, 498594040), (48, 436269785), (49, 427366320), (56, 373945530), (60, 349015828), (70, 299156424), (80, 261761871), (84, 249297020), (98, 213683160), (105, 199437616), (112, 186972765), (120, 174507914), (140, 149578212), (147, 142455440), (168, 124648510), (191, 109638480), (196, 106841580), (210, 99718808), (240, 87253957), (245, 85473264), (280, 74789106), (294, 71227720), (336, 62324255), (382, 54819240), (392, 53420790), (420, 49859404), (490, 42736632), (560, 37394553), (573, 36546160), (588, 35613860), (735, 28491088), (764, 27409620), (784, 26710395), (840, 24929702), (955, 21927696), (980, 21368316), (1146, 18273080), (1176, 17806930), (1337, 15662640), (1470, 14245544), (1528, 13704810), (1680, 12464851), (1910, 10963848), (1960, 10684158), (2292, 9136540), (2352, 8903465), (2674, 7831320), (2865, 7309232), (2940, 7122772), (3056, 6852405), (3820, 5481924), (3920, 5342079), (4011, 5220880), (4584, 4568270), (5348, 3915660), (5730, 3654616), (5880, 3561386), (6685, 3132528), (7640, 2740962), (8022, 2610440), (9168, 2284135), (9323, 2246160), (9359, 2237520), (10696, 1957830), (11460, 1827308), (11760, 1780693), (13370, 1566264), (15280, 1370481), (16044, 1305220), (18646, 1123080), (18718, 1118760), (20055, 1044176), (21392, 978915), (22920, 913654), (26740, 783132), (27969, 748720), (28077, 745840), (32088, 652610), (37292, 561540), (37436, 559380), (40110, 522088), (45840, 456827), (46615, 449232), (46795, 447504), (53480, 391566), (55938, 374360), (56154, 372920), (64176, 326305), (65261, 320880), (74584, 280770), (74872, 279690), (80220, 261044), (93230, 224616), (93590, 223752), (106960, 195783), (111876, 187180), (112308, 186460), (130522, 160440), (139845, 149744), (140385, 149168)]