28752815

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{4861}}^1$

素因数の和:4899

約数の個数: 24

約数和(自身を含む): 42707808

約数和(自身を除く): 13954993

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 4861, 5915, 24305, 34027, 63193, 170135, 315965, 442351, 821509, 2211755, 4107545, 5750563, 28752815]

約数ペア:

[(1, 28752815), (5, 5750563), (7, 4107545), (13, 2211755), (35, 821509), (65, 442351), (91, 315965), (169, 170135), (455, 63193), (845, 34027), (1183, 24305), (4861, 5915)]