2100090760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1220983}}^1$

素因数の和:1221037

約数の個数: 32

約数和(自身を含む): 4835096640

約数和(自身を除く): 2735005880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1220983, 2441966, 4883932, 6104915, 9767864, 12209830, 24419660, 48839320, 52502269, 105004538, 210009076, 262511345, 420018152, 525022690, 1050045380, 2100090760]

約数ペア:

[(1, 2100090760), (2, 1050045380), (4, 525022690), (5, 420018152), (8, 262511345), (10, 210009076), (20, 105004538), (40, 52502269), (43, 48839320), (86, 24419660), (172, 12209830), (215, 9767864), (344, 6104915), (430, 4883932), (860, 2441966), (1720, 1220983)]