20785796360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1061}}^1$

素因数の和:1208

約数の個数: 256

約数和(自身を含む): 57647738880

約数和(自身を除く): 36861942520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 37, 40, 56, 61, 62, 70, 74, 122, 124, 140, 148, 155, 185, 217, 244, 248, 259, 280, 296, 305, 310, 370, 427, 434, 488, 518, 610, 620, 740, 854, 868, 1036, 1061, 1085, 1147, 1220, 1240, 1295, 1480, 1708, 1736, 1891, 2072, 2122, 2135, 2170, 2257, 2294, 2440, 2590, 3416, 3782, 4244, 4270, 4340, 4514, 4588, 5180, 5305, 5735, 7427, 7564, 8029, 8488, 8540, 8680, 9028, 9176, 9455, 10360, 10610, 11285, 11470, 13237, 14854, 15128, 15799, 16058, 17080, 18056, 18910, 21220, 22570, 22940, 26474, 29708, 31598, 32116, 32891, 37135, 37820, 39257, 40145, 42440, 45140, 45880, 52948, 59416, 63196, 64232, 64721, 65782, 66185, 69967, 74270, 75640, 78514, 78995, 80290, 90280, 105896, 126392, 129442, 131564, 132370, 139934, 148540, 157028, 157990, 160580, 164455, 196285, 230237, 258884, 263128, 264740, 274799, 279868, 297080, 314056, 315980, 321160, 323605, 328910, 349835, 392570, 453047, 460474, 489769, 517768, 529480, 549598, 559736, 631960, 647210, 657820, 699670, 785140, 906094, 920948, 979538, 1099196, 1151185, 1216967, 1294420, 1315640, 1373995, 1399340, 1570280, 1812188, 1841896, 1959076, 2006351, 2198392, 2265235, 2302370, 2394677, 2433934, 2448845, 2588840, 2747990, 2798680, 3624376, 3918152, 4012702, 4530470, 4604740, 4789354, 4867868, 4897690, 5495980, 6084835, 8025404, 8518769, 9060940, 9209480, 9578708, 9735736, 9795380, 10031755, 10991960, 11973385, 12169670, 14044457, 16050808, 16762739, 17037538, 18121880, 19157416, 19590760, 20063510, 23946770, 24339340, 28088914, 33525478, 34075076, 40127020, 42593845, 47893540, 48678680, 56177828, 67050956, 68150152, 70222285, 74234987, 80254040, 83813695, 85187690, 95787080, 112355656, 134101912, 140444570, 148469974, 167627390, 170375380, 280889140, 296939948, 335254780, 340750760, 371174935, 519644909, 561778280, 593879896, 670509560, 742349870, 1039289818, 1484699740, 2078579636, 2598224545, 2969399480, 4157159272, 5196449090, 10392898180, 20785796360]

約数ペア:

[(1, 20785796360), (2, 10392898180), (4, 5196449090), (5, 4157159272), (7, 2969399480), (8, 2598224545), (10, 2078579636), (14, 1484699740), (20, 1039289818), (28, 742349870), (31, 670509560), (35, 593879896), (37, 561778280), (40, 519644909), (56, 371174935), (61, 340750760), (62, 335254780), (70, 296939948), (74, 280889140), (122, 170375380), (124, 167627390), (140, 148469974), (148, 140444570), (155, 134101912), (185, 112355656), (217, 95787080), (244, 85187690), (248, 83813695), (259, 80254040), (280, 74234987), (296, 70222285), (305, 68150152), (310, 67050956), (370, 56177828), (427, 48678680), (434, 47893540), (488, 42593845), (518, 40127020), (610, 34075076), (620, 33525478), (740, 28088914), (854, 24339340), (868, 23946770), (1036, 20063510), (1061, 19590760), (1085, 19157416), (1147, 18121880), (1220, 17037538), (1240, 16762739), (1295, 16050808), (1480, 14044457), (1708, 12169670), (1736, 11973385), (1891, 10991960), (2072, 10031755), (2122, 9795380), (2135, 9735736), (2170, 9578708), (2257, 9209480), (2294, 9060940), (2440, 8518769), (2590, 8025404), (3416, 6084835), (3782, 5495980), (4244, 4897690), (4270, 4867868), (4340, 4789354), (4514, 4604740), (4588, 4530470), (5180, 4012702), (5305, 3918152), (5735, 3624376), (7427, 2798680), (7564, 2747990), (8029, 2588840), (8488, 2448845), (8540, 2433934), (8680, 2394677), (9028, 2302370), (9176, 2265235), (9455, 2198392), (10360, 2006351), (10610, 1959076), (11285, 1841896), (11470, 1812188), (13237, 1570280), (14854, 1399340), (15128, 1373995), (15799, 1315640), (16058, 1294420), (17080, 1216967), (18056, 1151185), (18910, 1099196), (21220, 979538), (22570, 920948), (22940, 906094), (26474, 785140), (29708, 699670), (31598, 657820), (32116, 647210), (32891, 631960), (37135, 559736), (37820, 549598), (39257, 529480), (40145, 517768), (42440, 489769), (45140, 460474), (45880, 453047), (52948, 392570), (59416, 349835), (63196, 328910), (64232, 323605), (64721, 321160), (65782, 315980), (66185, 314056), (69967, 297080), (74270, 279868), (75640, 274799), (78514, 264740), (78995, 263128), (80290, 258884), (90280, 230237), (105896, 196285), (126392, 164455), (129442, 160580), (131564, 157990), (132370, 157028), (139934, 148540)]