18438100

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{3923}}^1$

素因数の和:3984

約数の個数: 36

約数和(自身を含む): 40872384

約数和(自身を除く): 22434284

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 188, 235, 470, 940, 1175, 2350, 3923, 4700, 7846, 15692, 19615, 39230, 78460, 98075, 184381, 196150, 368762, 392300, 737524, 921905, 1843810, 3687620, 4609525, 9219050, 18438100]

約数ペア:

[(1, 18438100), (2, 9219050), (4, 4609525), (5, 3687620), (10, 1843810), (20, 921905), (25, 737524), (47, 392300), (50, 368762), (94, 196150), (100, 184381), (188, 98075), (235, 78460), (470, 39230), (940, 19615), (1175, 15692), (2350, 7846), (3923, 4700)]