18629320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10831}}^1$

素因数の和:10885

約数の個数: 32

約数和(自身を含む): 42894720

約数和(自身を除く): 24265400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10831, 21662, 43324, 54155, 86648, 108310, 216620, 433240, 465733, 931466, 1862932, 2328665, 3725864, 4657330, 9314660, 18629320]

約数ペア:

[(1, 18629320), (2, 9314660), (4, 4657330), (5, 3725864), (8, 2328665), (10, 1862932), (20, 931466), (40, 465733), (43, 433240), (86, 216620), (172, 108310), (215, 86648), (344, 54155), (430, 43324), (860, 21662), (1720, 10831)]