66579640

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{2689}}^1$

素因数の和:3319

約数の個数: 32

約数和(自身を含む): 150102000

約数和(自身を除く): 83522360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 1238, 2476, 2689, 3095, 4952, 5378, 6190, 10756, 12380, 13445, 21512, 24760, 26890, 53780, 107560, 1664491, 3328982, 6657964, 8322455, 13315928, 16644910, 33289820, 66579640]

約数ペア:

[(1, 66579640), (2, 33289820), (4, 16644910), (5, 13315928), (8, 8322455), (10, 6657964), (20, 3328982), (40, 1664491), (619, 107560), (1238, 53780), (2476, 26890), (2689, 24760), (3095, 21512), (4952, 13445), (5378, 12380), (6190, 10756)]