15961805

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:844

約数の個数: 16

約数和(自身を含む): 20260800

約数和(自身を除く): 4298995

約数列:

[1, 5, 19, 95, 401, 419, 2005, 2095, 7619, 7961, 38095, 39805, 168019, 840095, 3192361, 15961805]

約数ペア:

[(1, 15961805), (5, 3192361), (19, 840095), (95, 168019), (401, 39805), (419, 38095), (2005, 7961), (2095, 7619)]