12421720

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{701}}^1$

素因数の和:1155

約数の個数: 32

約数和(自身を含む): 28051920

約数和(自身を除く): 15630200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 701, 886, 1402, 1772, 2215, 2804, 3505, 3544, 4430, 5608, 7010, 8860, 14020, 17720, 28040, 310543, 621086, 1242172, 1552715, 2484344, 3105430, 6210860, 12421720]

約数ペア:

[(1, 12421720), (2, 6210860), (4, 3105430), (5, 2484344), (8, 1552715), (10, 1242172), (20, 621086), (40, 310543), (443, 28040), (701, 17720), (886, 14020), (1402, 8860), (1772, 7010), (2215, 5608), (2804, 4430), (3505, 3544)]