78358940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{1009}}^1$

素因数の和:1382

約数の個数: 48

約数和(自身を含む): 180200160

約数和(自身を除く): 101841220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 353, 706, 1009, 1412, 1765, 2018, 3530, 3883, 4036, 5045, 7060, 7766, 10090, 11099, 15532, 19415, 20180, 22198, 38830, 44396, 55495, 77660, 110990, 221980, 356177, 712354, 1424708, 1780885, 3561770, 3917947, 7123540, 7835894, 15671788, 19589735, 39179470, 78358940]

約数ペア:

[(1, 78358940), (2, 39179470), (4, 19589735), (5, 15671788), (10, 7835894), (11, 7123540), (20, 3917947), (22, 3561770), (44, 1780885), (55, 1424708), (110, 712354), (220, 356177), (353, 221980), (706, 110990), (1009, 77660), (1412, 55495), (1765, 44396), (2018, 38830), (3530, 22198), (3883, 20180), (4036, 19415), (5045, 15532), (7060, 11099), (7766, 10090)]