257002640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{110777}}^1$

素因数の和:110819

約数の個数: 40

約数和(自身を含む): 618141240

約数和(自身を除く): 361138600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 110777, 221554, 443108, 553885, 886216, 1107770, 1772432, 2215540, 3212533, 4431080, 6425066, 8862160, 12850132, 16062665, 25700264, 32125330, 51400528, 64250660, 128501320, 257002640]

約数ペア:

[(1, 257002640), (2, 128501320), (4, 64250660), (5, 51400528), (8, 32125330), (10, 25700264), (16, 16062665), (20, 12850132), (29, 8862160), (40, 6425066), (58, 4431080), (80, 3212533), (116, 2215540), (145, 1772432), (232, 1107770), (290, 886216), (464, 553885), (580, 443108), (1160, 221554), (2320, 110777)]