2643860

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{811}}^1$

素因数の和:983

約数の個数: 24

約数和(自身を含む): 5593056

約数和(自身を除く): 2949196

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 811, 815, 1622, 1630, 3244, 3260, 4055, 8110, 16220, 132193, 264386, 528772, 660965, 1321930, 2643860]

約数ペア:

[(1, 2643860), (2, 1321930), (4, 660965), (5, 528772), (10, 264386), (20, 132193), (163, 16220), (326, 8110), (652, 4055), (811, 3260), (815, 3244), (1622, 1630)]