18132025

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 23373504

約数和(自身を除く): 5241479

約数列:

[1, 5, 25, 43, 101, 167, 215, 505, 835, 1075, 2525, 4175, 4343, 7181, 16867, 21715, 35905, 84335, 108575, 179525, 421675, 725281, 3626405, 18132025]

約数ペア:

[(1, 18132025), (5, 3626405), (25, 725281), (43, 421675), (101, 179525), (167, 108575), (215, 84335), (505, 35905), (835, 21715), (1075, 16867), (2525, 7181), (4175, 4343)]