19378820

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{2699}}^1$

素因数の和:3067

約数の個数: 24

約数和(自身を含む): 40824000

約数和(自身を除く): 21445180

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 2699, 3590, 5398, 7180, 10796, 13495, 26990, 53980, 968941, 1937882, 3875764, 4844705, 9689410, 19378820]

約数ペア:

[(1, 19378820), (2, 9689410), (4, 4844705), (5, 3875764), (10, 1937882), (20, 968941), (359, 53980), (718, 26990), (1436, 13495), (1795, 10796), (2699, 7180), (3590, 5398)]