28682925

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 49520640

約数和(自身を除く): 20837715

約数列:

[1, 3, 5, 15, 25, 47, 75, 79, 103, 141, 235, 237, 309, 395, 515, 705, 1175, 1185, 1545, 1975, 2575, 3525, 3713, 4841, 5925, 7725, 8137, 11139, 14523, 18565, 24205, 24411, 40685, 55695, 72615, 92825, 121025, 122055, 203425, 278475, 363075, 382439, 610275, 1147317, 1912195, 5736585, 9560975, 28682925]

約数ペア:

[(1, 28682925), (3, 9560975), (5, 5736585), (15, 1912195), (25, 1147317), (47, 610275), (75, 382439), (79, 363075), (103, 278475), (141, 203425), (235, 122055), (237, 121025), (309, 92825), (395, 72615), (515, 55695), (705, 40685), (1175, 24411), (1185, 24205), (1545, 18565), (1975, 14523), (2575, 11139), (3525, 8137), (3713, 7725), (4841, 5925)]