18381325

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 23748480

約数和(自身を除く): 5367155

約数列:

[1, 5, 25, 41, 79, 205, 227, 395, 1025, 1135, 1975, 3239, 5675, 9307, 16195, 17933, 46535, 80975, 89665, 232675, 448325, 735253, 3676265, 18381325]

約数ペア:

[(1, 18381325), (5, 3676265), (25, 735253), (41, 448325), (79, 232675), (205, 89665), (227, 80975), (395, 46535), (1025, 17933), (1135, 16195), (1975, 9307), (3239, 5675)]