208565985

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{1433}}^1$

素因数の和:1785

約数の個数: 32

約数和(自身を含む): 345811968

約数和(自身を除く): 137245983

約数列:

[1, 3, 5, 15, 31, 93, 155, 313, 465, 939, 1433, 1565, 4299, 4695, 7165, 9703, 21495, 29109, 44423, 48515, 133269, 145545, 222115, 448529, 666345, 1345587, 2242645, 6727935, 13904399, 41713197, 69521995, 208565985]

約数ペア:

[(1, 208565985), (3, 69521995), (5, 41713197), (15, 13904399), (31, 6727935), (93, 2242645), (155, 1345587), (313, 666345), (465, 448529), (939, 222115), (1433, 145545), (1565, 133269), (4299, 48515), (4695, 44423), (7165, 29109), (9703, 21495)]