81302125

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{28279}}^1$

素因数の和:28317

約数の個数: 16

約数和(自身を含む): 105880320

約数和(自身を除く): 24578195

約数列:

[1, 5, 23, 25, 115, 125, 575, 2875, 28279, 141395, 650417, 706975, 3252085, 3534875, 16260425, 81302125]

約数ペア:

[(1, 81302125), (5, 16260425), (23, 3534875), (25, 3252085), (115, 706975), (125, 650417), (575, 141395), (2875, 28279)]