207928785

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{2129}}^1$

素因数の和:2537

約数の個数: 32

約数和(自身を含む): 353341440

約数和(自身を除く): 145412655

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 383, 1149, 1915, 2129, 5745, 6387, 6511, 10645, 19533, 31935, 32555, 36193, 97665, 108579, 180965, 542895, 815407, 2446221, 4077035, 12231105, 13861919, 41585757, 69309595, 207928785]

約数ペア:

[(1, 207928785), (3, 69309595), (5, 41585757), (15, 13861919), (17, 12231105), (51, 4077035), (85, 2446221), (255, 815407), (383, 542895), (1149, 180965), (1915, 108579), (2129, 97665), (5745, 36193), (6387, 32555), (6511, 31935), (10645, 19533)]