31867240

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7309}}^1$

素因数の和:7429

約数の個数: 32

約数和(自身を含む): 72369000

約数和(自身を除く): 40501760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 7309, 14618, 29236, 36545, 58472, 73090, 146180, 292360, 796681, 1593362, 3186724, 3983405, 6373448, 7966810, 15933620, 31867240]

約数ペア:

[(1, 31867240), (2, 15933620), (4, 7966810), (5, 6373448), (8, 3983405), (10, 3186724), (20, 1593362), (40, 796681), (109, 292360), (218, 146180), (436, 73090), (545, 58472), (872, 36545), (1090, 29236), (2180, 14618), (4360, 7309)]