15840005

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{563}}^1$

素因数の和:916

約数の個数: 16

約数和(自身を含む): 20222784

約数和(自身を除く): 4382779

約数列:

[1, 5, 17, 85, 331, 563, 1655, 2815, 5627, 9571, 28135, 47855, 186353, 931765, 3168001, 15840005]

約数ペア:

[(1, 15840005), (5, 3168001), (17, 931765), (85, 186353), (331, 47855), (563, 28135), (1655, 9571), (2815, 5627)]