20616475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1229}}^1$

素因数の和:1311

約数の個数: 24

約数和(自身を含む): 28368720

約数和(自身を除く): 7752245

約数列:

[1, 5, 11, 25, 55, 61, 275, 305, 671, 1229, 1525, 3355, 6145, 13519, 16775, 30725, 67595, 74969, 337975, 374845, 824659, 1874225, 4123295, 20616475]

約数ペア:

[(1, 20616475), (5, 4123295), (11, 1874225), (25, 824659), (55, 374845), (61, 337975), (275, 74969), (305, 67595), (671, 30725), (1229, 16775), (1525, 13519), (3355, 6145)]