20121662032

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{665047}}^1$

素因数の和:665147

約数の個数: 40

約数和(自身を含む): 40903112192

約数和(自身を除く): 20781450160

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 122, 124, 244, 248, 488, 496, 976, 1891, 3782, 7564, 15128, 30256, 665047, 1330094, 2660188, 5320376, 10640752, 20616457, 40567867, 41232914, 81135734, 82465828, 162271468, 164931656, 324542936, 329863312, 649085872, 1257603877, 2515207754, 5030415508, 10060831016, 20121662032]

約数ペア:

[(1, 20121662032), (2, 10060831016), (4, 5030415508), (8, 2515207754), (16, 1257603877), (31, 649085872), (61, 329863312), (62, 324542936), (122, 164931656), (124, 162271468), (244, 82465828), (248, 81135734), (488, 41232914), (496, 40567867), (976, 20616457), (1891, 10640752), (3782, 5320376), (7564, 2660188), (15128, 1330094), (30256, 665047)]