20218600

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2351}}^1$

素因数の和:2410

約数の個数: 48

約数和(自身を含む): 48121920

約数和(自身を除く): 27903320

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 2351, 4300, 4702, 8600, 9404, 11755, 18808, 23510, 47020, 58775, 94040, 101093, 117550, 202186, 235100, 404372, 470200, 505465, 808744, 1010930, 2021860, 2527325, 4043720, 5054650, 10109300, 20218600]

約数ペア:

[(1, 20218600), (2, 10109300), (4, 5054650), (5, 4043720), (8, 2527325), (10, 2021860), (20, 1010930), (25, 808744), (40, 505465), (43, 470200), (50, 404372), (86, 235100), (100, 202186), (172, 117550), (200, 101093), (215, 94040), (344, 58775), (430, 47020), (860, 23510), (1075, 18808), (1720, 11755), (2150, 9404), (2351, 8600), (4300, 4702)]