213508640

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{13757}}^1$

素因数の和:13869

約数の個数: 48

約数和(自身を含む): 509651352

約数和(自身を除く): 296142712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 3104, 3880, 7760, 13757, 15520, 27514, 55028, 68785, 110056, 137570, 220112, 275140, 440224, 550280, 1100560, 1334429, 2201120, 2668858, 5337716, 6672145, 10675432, 13344290, 21350864, 26688580, 42701728, 53377160, 106754320, 213508640]

約数ペア:

[(1, 213508640), (2, 106754320), (4, 53377160), (5, 42701728), (8, 26688580), (10, 21350864), (16, 13344290), (20, 10675432), (32, 6672145), (40, 5337716), (80, 2668858), (97, 2201120), (160, 1334429), (194, 1100560), (388, 550280), (485, 440224), (776, 275140), (970, 220112), (1552, 137570), (1940, 110056), (3104, 68785), (3880, 55028), (7760, 27514), (13757, 15520)]