28691425

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8629}}^1$

素因数の和:8665

約数の個数: 24

約数和(自身を含む): 42804800

約数和(自身を除く): 14113375

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 3325, 8629, 43145, 60403, 163951, 215725, 302015, 819755, 1147657, 1510075, 4098775, 5738285, 28691425]

約数ペア:

[(1, 28691425), (5, 5738285), (7, 4098775), (19, 1510075), (25, 1147657), (35, 819755), (95, 302015), (133, 215725), (175, 163951), (475, 60403), (665, 43145), (3325, 8629)]