256989272

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{51071}}^1$

素因数の和:51131

約数の個数: 32

約数和(自身を含む): 523998720

約数和(自身を除く): 267009448

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 5032, 51071, 102142, 204284, 408568, 868207, 1736414, 1889627, 3472828, 3779254, 6945656, 7558508, 15117016, 32123659, 64247318, 128494636, 256989272]

約数ペア:

[(1, 256989272), (2, 128494636), (4, 64247318), (8, 32123659), (17, 15117016), (34, 7558508), (37, 6945656), (68, 3779254), (74, 3472828), (136, 1889627), (148, 1736414), (296, 868207), (629, 408568), (1258, 204284), (2516, 102142), (5032, 51071)]