390616760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{89591}}^1$

素因数の和:89711

約数の個数: 32

約数和(自身を含む): 886960800

約数和(自身を除く): 496344040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 89591, 179182, 358364, 447955, 716728, 895910, 1791820, 3583640, 9765419, 19530838, 39061676, 48827095, 78123352, 97654190, 195308380, 390616760]

約数ペア:

[(1, 390616760), (2, 195308380), (4, 97654190), (5, 78123352), (8, 48827095), (10, 39061676), (20, 19530838), (40, 9765419), (109, 3583640), (218, 1791820), (436, 895910), (545, 716728), (872, 447955), (1090, 358364), (2180, 179182), (4360, 89591)]