18672820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{49139}}^1$

素因数の和:49167

約数の個数: 24

約数和(自身を含む): 41277600

約数和(自身を除く): 22604780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 49139, 98278, 196556, 245695, 491390, 933641, 982780, 1867282, 3734564, 4668205, 9336410, 18672820]

約数ペア:

[(1, 18672820), (2, 9336410), (4, 4668205), (5, 3734564), (10, 1867282), (19, 982780), (20, 933641), (38, 491390), (76, 245695), (95, 196556), (190, 98278), (380, 49139)]