20781675140

素因数分解:

$2^2\times 5^1\times {\mathrm{7573}}^1\times {\mathrm{137209}}^1$

素因数の和:144791

約数の個数: 24

約数和(自身を含む): 43647598680

約数和(自身を除く): 22865923540

約数列:

[1, 2, 4, 5, 10, 20, 7573, 15146, 30292, 37865, 75730, 137209, 151460, 274418, 548836, 686045, 1372090, 2744180, 1039083757, 2078167514, 4156335028, 5195418785, 10390837570, 20781675140]

約数ペア:

[(1, 20781675140), (2, 10390837570), (4, 5195418785), (5, 4156335028), (10, 2078167514), (20, 1039083757), (7573, 2744180), (15146, 1372090), (30292, 686045), (37865, 548836), (75730, 274418), (137209, 151460)]