18368890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{653}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 34609680

約数和(自身を除く): 16240790

約数列:

[1, 2, 5, 10, 29, 58, 97, 145, 194, 290, 485, 653, 970, 1306, 2813, 3265, 5626, 6530, 14065, 18937, 28130, 37874, 63341, 94685, 126682, 189370, 316705, 633410, 1836889, 3673778, 9184445, 18368890]

約数ペア:

[(1, 18368890), (2, 9184445), (5, 3673778), (10, 1836889), (29, 633410), (58, 316705), (97, 189370), (145, 126682), (194, 94685), (290, 63341), (485, 37874), (653, 28130), (970, 18937), (1306, 14065), (2813, 6530), (3265, 5626)]