28080525

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{337}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 51300288

約数和(自身を除く): 23219763

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 101, 165, 275, 303, 337, 505, 825, 1011, 1111, 1515, 1685, 2525, 3333, 3707, 5055, 5555, 7575, 8425, 11121, 16665, 18535, 25275, 27775, 34037, 55605, 83325, 92675, 102111, 170185, 278025, 374407, 510555, 850925, 1123221, 1872035, 2552775, 5616105, 9360175, 28080525]

約数ペア:

[(1, 28080525), (3, 9360175), (5, 5616105), (11, 2552775), (15, 1872035), (25, 1123221), (33, 850925), (55, 510555), (75, 374407), (101, 278025), (165, 170185), (275, 102111), (303, 92675), (337, 83325), (505, 55605), (825, 34037), (1011, 27775), (1111, 25275), (1515, 18535), (1685, 16665), (2525, 11121), (3333, 8425), (3707, 7575), (5055, 5555)]