219115240

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{56473}}^1$

素因数の和:56581

約数の個数: 32

約数和(自身を含む): 498100680

約数和(自身を除く): 278985440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 56473, 112946, 225892, 282365, 451784, 564730, 1129460, 2258920, 5477881, 10955762, 21911524, 27389405, 43823048, 54778810, 109557620, 219115240]

約数ペア:

[(1, 219115240), (2, 109557620), (4, 54778810), (5, 43823048), (8, 27389405), (10, 21911524), (20, 10955762), (40, 5477881), (97, 2258920), (194, 1129460), (388, 564730), (485, 451784), (776, 282365), (970, 225892), (1940, 112946), (3880, 56473)]