840820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2473}}^1$

素因数の和:2499

約数の個数: 24

約数和(自身を含む): 1870344

約数和(自身を除く): 1029524

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2473, 4946, 9892, 12365, 24730, 42041, 49460, 84082, 168164, 210205, 420410, 840820]

約数ペア:

[(1, 840820), (2, 420410), (4, 210205), (5, 168164), (10, 84082), (17, 49460), (20, 42041), (34, 24730), (68, 12365), (85, 9892), (170, 4946), (340, 2473)]