18686220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{44491}}^1$

素因数の和:44510

約数の個数: 48

約数和(自身を含む): 59797248

約数和(自身を除く): 41111028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 44491, 88982, 133473, 177964, 222455, 266946, 311437, 444910, 533892, 622874, 667365, 889820, 934311, 1245748, 1334730, 1557185, 1868622, 2669460, 3114370, 3737244, 4671555, 6228740, 9343110, 18686220]

約数ペア:

[(1, 18686220), (2, 9343110), (3, 6228740), (4, 4671555), (5, 3737244), (6, 3114370), (7, 2669460), (10, 1868622), (12, 1557185), (14, 1334730), (15, 1245748), (20, 934311), (21, 889820), (28, 667365), (30, 622874), (35, 533892), (42, 444910), (60, 311437), (70, 266946), (84, 222455), (105, 177964), (140, 133473), (210, 88982), (420, 44491)]