20016660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2239}}^1$

素因数の和:2400

約数の個数: 48

約数和(自身を含む): 56448000

約数和(自身を除く): 36431340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 149, 298, 447, 596, 745, 894, 1490, 1788, 2235, 2239, 2980, 4470, 4478, 6717, 8940, 8956, 11195, 13434, 22390, 26868, 33585, 44780, 67170, 134340, 333611, 667222, 1000833, 1334444, 1668055, 2001666, 3336110, 4003332, 5004165, 6672220, 10008330, 20016660]

約数ペア:

[(1, 20016660), (2, 10008330), (3, 6672220), (4, 5004165), (5, 4003332), (6, 3336110), (10, 2001666), (12, 1668055), (15, 1334444), (20, 1000833), (30, 667222), (60, 333611), (149, 134340), (298, 67170), (447, 44780), (596, 33585), (745, 26868), (894, 22390), (1490, 13434), (1788, 11195), (2235, 8956), (2239, 8940), (2980, 6717), (4470, 4478)]