19278940

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3557}}^1$

素因数の和:3837

約数の個数: 24

約数和(自身を含む): 40646592

約数和(自身を除く): 21367652

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 3557, 5420, 7114, 14228, 17785, 35570, 71140, 963947, 1927894, 3855788, 4819735, 9639470, 19278940]

約数ペア:

[(1, 19278940), (2, 9639470), (4, 4819735), (5, 3855788), (10, 1927894), (20, 963947), (271, 71140), (542, 35570), (1084, 17785), (1355, 14228), (2710, 7114), (3557, 5420)]