18280220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3529}}^1$

素因数の和:3582

約数の個数: 48

約数和(自身を含む): 45071040

約数和(自身を除く): 26790820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 3529, 5180, 7058, 14116, 17645, 24703, 35290, 49406, 70580, 98812, 123515, 130573, 247030, 261146, 494060, 522292, 652865, 914011, 1305730, 1828022, 2611460, 3656044, 4570055, 9140110, 18280220]

約数ペア:

[(1, 18280220), (2, 9140110), (4, 4570055), (5, 3656044), (7, 2611460), (10, 1828022), (14, 1305730), (20, 914011), (28, 652865), (35, 522292), (37, 494060), (70, 261146), (74, 247030), (140, 130573), (148, 123515), (185, 98812), (259, 70580), (370, 49406), (518, 35290), (740, 24703), (1036, 17645), (1295, 14116), (2590, 7058), (3529, 5180)]