20156035

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 24916320

約数和(自身を除く): 4760285

約数列:

[1, 5, 43, 215, 241, 389, 1205, 1945, 10363, 16727, 51815, 83635, 93749, 468745, 4031207, 20156035]

約数ペア:

[(1, 20156035), (5, 4031207), (43, 468745), (215, 93749), (241, 83635), (389, 51815), (1205, 16727), (1945, 10363)]