15768625

素因数分解:

$5^3\times {\mathrm{101}}^1\times {\mathrm{1249}}^1$

素因数の和:1365

約数の個数: 16

約数和(自身を含む): 19890000

約数和(自身を除く): 4121375

約数列:

[1, 5, 25, 101, 125, 505, 1249, 2525, 6245, 12625, 31225, 126149, 156125, 630745, 3153725, 15768625]

約数ペア:

[(1, 15768625), (5, 3153725), (25, 630745), (101, 156125), (125, 126149), (505, 31225), (1249, 12625), (2525, 6245)]