25428820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{17417}}^1$

素因数の和:17499

約数の個数: 24

約数和(自身を含む): 54135144

約数和(自身を除く): 28706324

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 17417, 34834, 69668, 87085, 174170, 348340, 1271441, 2542882, 5085764, 6357205, 12714410, 25428820]

約数ペア:

[(1, 25428820), (2, 12714410), (4, 6357205), (5, 5085764), (10, 2542882), (20, 1271441), (73, 348340), (146, 174170), (292, 87085), (365, 69668), (730, 34834), (1460, 17417)]