64717220

素因数分解:

$2^2\times 5^1\times {\mathrm{1549}}^1\times {\mathrm{2089}}^1$

素因数の和:3647

約数の個数: 24

約数和(自身を含む): 136059000

約数和(自身を除く): 71341780

約数列:

[1, 2, 4, 5, 10, 20, 1549, 2089, 3098, 4178, 6196, 7745, 8356, 10445, 15490, 20890, 30980, 41780, 3235861, 6471722, 12943444, 16179305, 32358610, 64717220]

約数ペア:

[(1, 64717220), (2, 32358610), (4, 16179305), (5, 12943444), (10, 6471722), (20, 3235861), (1549, 41780), (2089, 30980), (3098, 20890), (4178, 15490), (6196, 10445), (7745, 8356)]