255110960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245299}}^1$

素因数の和:245325

約数の個数: 40

約数和(自身を含む): 638761200

約数和(自身を除く): 383650240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 245299, 490598, 981196, 1226495, 1962392, 2452990, 3188887, 3924784, 4905980, 6377774, 9811960, 12755548, 15944435, 19623920, 25511096, 31888870, 51022192, 63777740, 127555480, 255110960]

約数ペア:

[(1, 255110960), (2, 127555480), (4, 63777740), (5, 51022192), (8, 31888870), (10, 25511096), (13, 19623920), (16, 15944435), (20, 12755548), (26, 9811960), (40, 6377774), (52, 4905980), (65, 3924784), (80, 3188887), (104, 2452990), (130, 1962392), (208, 1226495), (260, 981196), (520, 490598), (1040, 245299)]