256215544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{4423}}^1$

素因数の和:4999

約数の個数: 32

約数和(自身を含む): 518404320

約数和(自身を除く): 262188776

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 557, 1114, 2228, 4423, 4456, 7241, 8846, 14482, 17692, 28964, 35384, 57499, 57928, 114998, 229996, 459992, 2463611, 4927222, 9854444, 19708888, 32026943, 64053886, 128107772, 256215544]

約数ペア:

[(1, 256215544), (2, 128107772), (4, 64053886), (8, 32026943), (13, 19708888), (26, 9854444), (52, 4927222), (104, 2463611), (557, 459992), (1114, 229996), (2228, 114998), (4423, 57928), (4456, 57499), (7241, 35384), (8846, 28964), (14482, 17692)]