28390855

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{8513}}^1$

素因数の和:8570

約数の個数: 16

約数和(自身を含む): 36780480

約数和(自身を除く): 8389625

約数列:

[1, 5, 23, 29, 115, 145, 667, 3335, 8513, 42565, 195799, 246877, 978995, 1234385, 5678171, 28390855]

約数ペア:

[(1, 28390855), (5, 5678171), (23, 1234385), (29, 978995), (115, 246877), (145, 195799), (667, 42565), (3335, 8513)]