28413825

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 53829888

約数和(自身を除く): 25416063

約数列:

[1, 3, 5, 11, 15, 25, 31, 33, 55, 75, 93, 101, 121, 155, 165, 275, 303, 341, 363, 465, 505, 605, 775, 825, 1023, 1111, 1515, 1705, 1815, 2325, 2525, 3025, 3131, 3333, 3751, 5115, 5555, 7575, 8525, 9075, 9393, 11253, 12221, 15655, 16665, 18755, 25575, 27775, 34441, 36663, 46965, 56265, 61105, 78275, 83325, 93775, 103323, 172205, 183315, 234825, 281325, 305525, 378851, 516615, 861025, 916575, 1136553, 1894255, 2583075, 5682765, 9471275, 28413825]

約数ペア:

[(1, 28413825), (3, 9471275), (5, 5682765), (11, 2583075), (15, 1894255), (25, 1136553), (31, 916575), (33, 861025), (55, 516615), (75, 378851), (93, 305525), (101, 281325), (121, 234825), (155, 183315), (165, 172205), (275, 103323), (303, 93775), (341, 83325), (363, 78275), (465, 61105), (505, 56265), (605, 46965), (775, 36663), (825, 34441), (1023, 27775), (1111, 25575), (1515, 18755), (1705, 16665), (1815, 15655), (2325, 12221), (2525, 11253), (3025, 9393), (3131, 9075), (3333, 8525), (3751, 7575), (5115, 5555)]