87430180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101663}}^1$

素因数の和:101715

約数の個数: 24

約数和(自身を含む): 187875072

約数和(自身を除く): 100444892

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 101663, 203326, 406652, 508315, 1016630, 2033260, 4371509, 8743018, 17486036, 21857545, 43715090, 87430180]

約数ペア:

[(1, 87430180), (2, 43715090), (4, 21857545), (5, 17486036), (10, 8743018), (20, 4371509), (43, 2033260), (86, 1016630), (172, 508315), (215, 406652), (430, 203326), (860, 101663)]