2821520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2713}}^1$

素因数の和:2739

約数の個数: 40

約数和(自身を含む): 7067256

約数和(自身を除く): 4245736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2713, 5426, 10852, 13565, 21704, 27130, 35269, 43408, 54260, 70538, 108520, 141076, 176345, 217040, 282152, 352690, 564304, 705380, 1410760, 2821520]

約数ペア:

[(1, 2821520), (2, 1410760), (4, 705380), (5, 564304), (8, 352690), (10, 282152), (13, 217040), (16, 176345), (20, 141076), (26, 108520), (40, 70538), (52, 54260), (65, 43408), (80, 35269), (104, 27130), (130, 21704), (208, 13565), (260, 10852), (520, 5426), (1040, 2713)]