12644440

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1117}}^1$

素因数の和:1411

約数の個数: 32

約数和(自身を含む): 28576080

約数和(自身を除く): 15931640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1117, 1132, 1415, 2234, 2264, 2830, 4468, 5585, 5660, 8936, 11170, 11320, 22340, 44680, 316111, 632222, 1264444, 1580555, 2528888, 3161110, 6322220, 12644440]

約数ペア:

[(1, 12644440), (2, 6322220), (4, 3161110), (5, 2528888), (8, 1580555), (10, 1264444), (20, 632222), (40, 316111), (283, 44680), (566, 22340), (1117, 11320), (1132, 11170), (1415, 8936), (2234, 5660), (2264, 5585), (2830, 4468)]