2001640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{307}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 4546080

約数和(自身を除く): 2544440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 307, 326, 614, 652, 815, 1228, 1304, 1535, 1630, 2456, 3070, 3260, 6140, 6520, 12280, 50041, 100082, 200164, 250205, 400328, 500410, 1000820, 2001640]

約数ペア:

[(1, 2001640), (2, 1000820), (4, 500410), (5, 400328), (8, 250205), (10, 200164), (20, 100082), (40, 50041), (163, 12280), (307, 6520), (326, 6140), (614, 3260), (652, 3070), (815, 2456), (1228, 1630), (1304, 1535)]