28209225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1103}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 52568064

約数和(自身を除く): 24358839

約数列:

[1, 3, 5, 11, 15, 25, 31, 33, 55, 75, 93, 155, 165, 275, 341, 465, 775, 825, 1023, 1103, 1705, 2325, 3309, 5115, 5515, 8525, 12133, 16545, 25575, 27575, 34193, 36399, 60665, 82725, 102579, 170965, 181995, 303325, 376123, 512895, 854825, 909975, 1128369, 1880615, 2564475, 5641845, 9403075, 28209225]

約数ペア:

[(1, 28209225), (3, 9403075), (5, 5641845), (11, 2564475), (15, 1880615), (25, 1128369), (31, 909975), (33, 854825), (55, 512895), (75, 376123), (93, 303325), (155, 181995), (165, 170965), (275, 102579), (341, 82725), (465, 60665), (775, 36399), (825, 34193), (1023, 27575), (1103, 25575), (1705, 16545), (2325, 12133), (3309, 8525), (5115, 5515)]