28584725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{313}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 38429832

約数和(自身を除く): 9845107

約数列:

[1, 5, 13, 25, 65, 281, 313, 325, 1405, 1565, 3653, 4069, 7025, 7825, 18265, 20345, 87953, 91325, 101725, 439765, 1143389, 2198825, 5716945, 28584725]

約数ペア:

[(1, 28584725), (5, 5716945), (13, 2198825), (25, 1143389), (65, 439765), (281, 101725), (313, 91325), (325, 87953), (1405, 20345), (1565, 18265), (3653, 7825), (4069, 7025)]