12967720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4441}}^1$

素因数の和:4525

約数の個数: 32

約数和(自身を含む): 29583720

約数和(自身を除く): 16616000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 4441, 8882, 17764, 22205, 35528, 44410, 88820, 177640, 324193, 648386, 1296772, 1620965, 2593544, 3241930, 6483860, 12967720]

約数ペア:

[(1, 12967720), (2, 6483860), (4, 3241930), (5, 2593544), (8, 1620965), (10, 1296772), (20, 648386), (40, 324193), (73, 177640), (146, 88820), (292, 44410), (365, 35528), (584, 22205), (730, 17764), (1460, 8882), (2920, 4441)]