7940440

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1109}}^1$

素因数の和:1299

約数の個数: 32

約数和(自身を含む): 17982000

約数和(自身を除く): 10041560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1109, 1432, 1790, 2218, 3580, 4436, 5545, 7160, 8872, 11090, 22180, 44360, 198511, 397022, 794044, 992555, 1588088, 1985110, 3970220, 7940440]

約数ペア:

[(1, 7940440), (2, 3970220), (4, 1985110), (5, 1588088), (8, 992555), (10, 794044), (20, 397022), (40, 198511), (179, 44360), (358, 22180), (716, 11090), (895, 8872), (1109, 7160), (1432, 5545), (1790, 4436), (2218, 3580)]