18530975

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 23904720

約数和(自身を除く): 5373745

約数列:

[1, 5, 25, 41, 101, 179, 205, 505, 895, 1025, 2525, 4141, 4475, 7339, 18079, 20705, 36695, 90395, 103525, 183475, 451975, 741239, 3706195, 18530975]

約数ペア:

[(1, 18530975), (5, 3706195), (25, 741239), (41, 451975), (101, 183475), (179, 103525), (205, 90395), (505, 36695), (895, 20705), (1025, 18079), (2525, 7339), (4141, 4475)]