20576155

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:614

約数の個数: 16

約数和(自身を含む): 25272000

約数和(自身を除く): 4695845

約数列:

[1, 5, 71, 149, 355, 389, 745, 1945, 10579, 27619, 52895, 57961, 138095, 289805, 4115231, 20576155]

約数ペア:

[(1, 20576155), (5, 4115231), (71, 289805), (149, 138095), (355, 57961), (389, 52895), (745, 27619), (1945, 10579)]