20415175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1217}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 28091952

約数和(自身を除く): 7676777

約数列:

[1, 5, 11, 25, 55, 61, 275, 305, 671, 1217, 1525, 3355, 6085, 13387, 16775, 30425, 66935, 74237, 334675, 371185, 816607, 1855925, 4083035, 20415175]

約数ペア:

[(1, 20415175), (5, 4083035), (11, 1855925), (25, 816607), (55, 371185), (61, 334675), (275, 74237), (305, 66935), (671, 30425), (1217, 16775), (1525, 13387), (3355, 6085)]