320021725

素因数分解:

$5^2\times {\mathrm{137}}^1\times {\mathrm{223}}^1\times {\mathrm{419}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 402474240

約数和(自身を除く): 82452515

約数列:

[1, 5, 25, 137, 223, 419, 685, 1115, 2095, 3425, 5575, 10475, 30551, 57403, 93437, 152755, 287015, 467185, 763775, 1435075, 2335925, 12800869, 64004345, 320021725]

約数ペア:

[(1, 320021725), (5, 64004345), (25, 12800869), (137, 2335925), (223, 1435075), (419, 763775), (685, 467185), (1115, 287015), (2095, 152755), (3425, 93437), (5575, 57403), (10475, 30551)]