20635700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4799}}^1$

素因数の和:4856

約数の個数: 36

約数和(自身を含む): 45830400

約数和(自身を除く): 25194700

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 4799, 9598, 19196, 23995, 47990, 95980, 119975, 206357, 239950, 412714, 479900, 825428, 1031785, 2063570, 4127140, 5158925, 10317850, 20635700]

約数ペア:

[(1, 20635700), (2, 10317850), (4, 5158925), (5, 4127140), (10, 2063570), (20, 1031785), (25, 825428), (43, 479900), (50, 412714), (86, 239950), (100, 206357), (172, 119975), (215, 95980), (430, 47990), (860, 23995), (1075, 19196), (2150, 9598), (4300, 4799)]