81878025

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{26627}}^1$

素因数の和:26681

約数の個数: 24

約数和(自身を含む): 138678624

約数和(自身を除く): 56800599

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 1025, 3075, 26627, 79881, 133135, 399405, 665675, 1091707, 1997025, 3275121, 5458535, 16375605, 27292675, 81878025]

約数ペア:

[(1, 81878025), (3, 27292675), (5, 16375605), (15, 5458535), (25, 3275121), (41, 1997025), (75, 1091707), (123, 665675), (205, 399405), (615, 133135), (1025, 79881), (3075, 26627)]