12808640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3079}}^1$

素因数の和:3109

約数の個数: 56

約数和(自身を含む): 32857440

約数和(自身を除く): 20048800

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, 3079, 4160, 6158, 12316, 15395, 24632, 30790, 40027, 49264, 61580, 80054, 98528, 123160, 160108, 197056, 200135, 246320, 320216, 400270, 492640, 640432, 800540, 985280, 1280864, 1601080, 2561728, 3202160, 6404320, 12808640]

約数ペア:

[(1, 12808640), (2, 6404320), (4, 3202160), (5, 2561728), (8, 1601080), (10, 1280864), (13, 985280), (16, 800540), (20, 640432), (26, 492640), (32, 400270), (40, 320216), (52, 246320), (64, 200135), (65, 197056), (80, 160108), (104, 123160), (130, 98528), (160, 80054), (208, 61580), (260, 49264), (320, 40027), (416, 30790), (520, 24632), (832, 15395), (1040, 12316), (2080, 6158), (3079, 4160)]