1771681808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{787}}^1$

素因数の和:1024

約数の個数: 80

約数和(自身を含む): 3775591680

約数和(自身を除く): 2003909872

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 79, 104, 137, 158, 208, 274, 316, 548, 632, 787, 1027, 1096, 1264, 1574, 1781, 2054, 2192, 3148, 3562, 4108, 6296, 7124, 8216, 10231, 10823, 12592, 14248, 16432, 20462, 21646, 28496, 40924, 43292, 62173, 81848, 86584, 107819, 124346, 140699, 163696, 173168, 215638, 248692, 281398, 431276, 497384, 562796, 808249, 862552, 994768, 1125592, 1401647, 1616498, 1725104, 2251184, 2803294, 3232996, 5606588, 6465992, 8517701, 11213176, 12931984, 17035402, 22426352, 34070804, 68141608, 110730113, 136283216, 221460226, 442920452, 885840904, 1771681808]

約数ペア:

[(1, 1771681808), (2, 885840904), (4, 442920452), (8, 221460226), (13, 136283216), (16, 110730113), (26, 68141608), (52, 34070804), (79, 22426352), (104, 17035402), (137, 12931984), (158, 11213176), (208, 8517701), (274, 6465992), (316, 5606588), (548, 3232996), (632, 2803294), (787, 2251184), (1027, 1725104), (1096, 1616498), (1264, 1401647), (1574, 1125592), (1781, 994768), (2054, 862552), (2192, 808249), (3148, 562796), (3562, 497384), (4108, 431276), (6296, 281398), (7124, 248692), (8216, 215638), (10231, 173168), (10823, 163696), (12592, 140699), (14248, 124346), (16432, 107819), (20462, 86584), (21646, 81848), (28496, 62173), (40924, 43292)]