268648640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{64579}}^1$

素因数の和:64609

約数の個数: 56

約数和(自身を含む): 688939440

約数和(自身を除く): 420290800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 64579, 129158, 258316, 322895, 516632, 645790, 839527, 1033264, 1291580, 1679054, 2066528, 2583160, 3358108, 4133056, 4197635, 5166320, 6716216, 8395270, 10332640, 13432432, 16790540, 20665280, 26864864, 33581080, 53729728, 67162160, 134324320, 268648640]

約数ペア:

[(1, 268648640), (2, 134324320), (4, 67162160), (5, 53729728), (8, 33581080), (10, 26864864), (13, 20665280), (16, 16790540), (20, 13432432), (26, 10332640), (32, 8395270), (40, 6716216), (52, 5166320), (64, 4197635), (65, 4133056), (80, 3358108), (104, 2583160), (130, 2066528), (160, 1679054), (208, 1291580), (260, 1033264), (320, 839527), (416, 645790), (520, 516632), (832, 322895), (1040, 258316), (2080, 129158), (4160, 64579)]