7920375

素因数分解:

$3^1\times 5^3\times {\mathrm{21121}}^1$

素因数の和:21139

約数の個数: 16

約数和(自身を含む): 13180128

約数和(自身を除く): 5259753

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 21121, 63363, 105605, 316815, 528025, 1584075, 2640125, 7920375]

約数ペア:

[(1, 7920375), (3, 2640125), (5, 1584075), (15, 528025), (25, 316815), (75, 105605), (125, 63363), (375, 21121)]