79809025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 104680800

約数和(自身を除く): 24871775

約数列:

[1, 5, 19, 25, 95, 401, 419, 475, 2005, 2095, 7619, 7961, 10025, 10475, 38095, 39805, 168019, 190475, 199025, 840095, 3192361, 4200475, 15961805, 79809025]

約数ペア:

[(1, 79809025), (5, 15961805), (19, 4200475), (25, 3192361), (95, 840095), (401, 199025), (419, 190475), (475, 168019), (2005, 39805), (2095, 38095), (7619, 10475), (7961, 10025)]