28409620

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{30223}}^1$

素因数の和:30279

約数の個数: 24

約数和(自身を含む): 60931584

約数和(自身を除く): 32521964

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 30223, 60446, 120892, 151115, 302230, 604460, 1420481, 2840962, 5681924, 7102405, 14204810, 28409620]

約数ペア:

[(1, 28409620), (2, 14204810), (4, 7102405), (5, 5681924), (10, 2840962), (20, 1420481), (47, 604460), (94, 302230), (188, 151115), (235, 120892), (470, 60446), (940, 30223)]