1640291387

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{85303}}^1$

素因数の和:85418

約数の個数: 16

約数和(自身を含む): 1949025792

約数和(自身を除く): 308734405

約数列:

[1, 7, 41, 67, 287, 469, 2747, 19229, 85303, 597121, 3497423, 5715301, 24481961, 40007107, 234327341, 1640291387]

約数ペア:

[(1, 1640291387), (7, 234327341), (41, 40007107), (67, 24481961), (287, 5715301), (469, 3497423), (2747, 597121), (19229, 85303)]