12875320

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{787}}^1$

素因数の和:1207

約数の個数: 32

約数和(自身を含む): 29077200

約数和(自身を除く): 16201880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 787, 818, 1574, 1636, 2045, 3148, 3272, 3935, 4090, 6296, 7870, 8180, 15740, 16360, 31480, 321883, 643766, 1287532, 1609415, 2575064, 3218830, 6437660, 12875320]

約数ペア:

[(1, 12875320), (2, 6437660), (4, 3218830), (5, 2575064), (8, 1609415), (10, 1287532), (20, 643766), (40, 321883), (409, 31480), (787, 16360), (818, 15740), (1574, 8180), (1636, 7870), (2045, 6296), (3148, 4090), (3272, 3935)]