1388971930

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{443761}}^1$

素因数の和:444081

約数の個数: 16

約数和(自身を含む): 2508142824

約数和(自身を除く): 1119170894

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 443761, 887522, 2218805, 4437610, 138897193, 277794386, 694485965, 1388971930]

約数ペア:

[(1, 1388971930), (2, 694485965), (5, 277794386), (10, 138897193), (313, 4437610), (626, 2218805), (1565, 887522), (3130, 443761)]