643766656

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5449}}^1$

素因数の和:5547

約数の個数: 64

約数和(自身を含む): 1400868000

約数和(自身を除く): 757101344

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 128, 142, 208, 284, 416, 568, 832, 923, 1136, 1664, 1846, 2272, 3692, 4544, 5449, 7384, 9088, 10898, 14768, 21796, 29536, 43592, 59072, 70837, 87184, 118144, 141674, 174368, 283348, 348736, 386879, 566696, 697472, 773758, 1133392, 1547516, 2266784, 3095032, 4533568, 5029427, 6190064, 9067136, 10058854, 12380128, 20117708, 24760256, 40235416, 49520512, 80470832, 160941664, 321883328, 643766656]

約数ペア:

[(1, 643766656), (2, 321883328), (4, 160941664), (8, 80470832), (13, 49520512), (16, 40235416), (26, 24760256), (32, 20117708), (52, 12380128), (64, 10058854), (71, 9067136), (104, 6190064), (128, 5029427), (142, 4533568), (208, 3095032), (284, 2266784), (416, 1547516), (568, 1133392), (832, 773758), (923, 697472), (1136, 566696), (1664, 386879), (1846, 348736), (2272, 283348), (3692, 174368), (4544, 141674), (5449, 118144), (7384, 87184), (9088, 70837), (10898, 59072), (14768, 43592), (21796, 29536)]