20280315

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6469}}^1$

素因数の和:6507

約数の個数: 32

約数和(自身を含む): 37267200

約数和(自身を除く): 16986885

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6469, 19407, 32345, 71159, 97035, 122911, 213477, 355795, 368733, 614555, 1067385, 1352021, 1843665, 4056063, 6760105, 20280315]

約数ペア:

[(1, 20280315), (3, 6760105), (5, 4056063), (11, 1843665), (15, 1352021), (19, 1067385), (33, 614555), (55, 368733), (57, 355795), (95, 213477), (165, 122911), (209, 97035), (285, 71159), (627, 32345), (1045, 19407), (3135, 6469)]