12306520

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{857}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 27799200

約数和(自身を除く): 15492680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 857, 1436, 1714, 1795, 2872, 3428, 3590, 4285, 6856, 7180, 8570, 14360, 17140, 34280, 307663, 615326, 1230652, 1538315, 2461304, 3076630, 6153260, 12306520]

約数ペア:

[(1, 12306520), (2, 6153260), (4, 3076630), (5, 2461304), (8, 1538315), (10, 1230652), (20, 615326), (40, 307663), (359, 34280), (718, 17140), (857, 14360), (1436, 8570), (1714, 7180), (1795, 6856), (2872, 4285), (3428, 3590)]