28727965

素因数分解:

$5^1\times 7^4\times {\mathrm{2393}}^1$

素因数の和:2426

約数の個数: 20

約数和(自身を含む): 40233564

約数和(自身を除く): 11505599

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 2393, 2401, 11965, 12005, 16751, 83755, 117257, 586285, 820799, 4103995, 5745593, 28727965]

約数ペア:

[(1, 28727965), (5, 5745593), (7, 4103995), (35, 820799), (49, 586285), (245, 117257), (343, 83755), (1715, 16751), (2393, 12005), (2401, 11965)]