318521980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{20873}}^1$

素因数の和:20998

約数の個数: 48

約数和(自身を含む): 771503040

約数和(自身を除く): 452981060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 7630, 15260, 20873, 41746, 83492, 104365, 146111, 208730, 292222, 417460, 584444, 730555, 1461110, 2275157, 2922220, 4550314, 9100628, 11375785, 15926099, 22751570, 31852198, 45503140, 63704396, 79630495, 159260990, 318521980]

約数ペア:

[(1, 318521980), (2, 159260990), (4, 79630495), (5, 63704396), (7, 45503140), (10, 31852198), (14, 22751570), (20, 15926099), (28, 11375785), (35, 9100628), (70, 4550314), (109, 2922220), (140, 2275157), (218, 1461110), (436, 730555), (545, 584444), (763, 417460), (1090, 292222), (1526, 208730), (2180, 146111), (3052, 104365), (3815, 83492), (7630, 41746), (15260, 20873)]