28188765

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 27581859

約数列:

[1, 3, 5, 9, 11, 15, 31, 33, 45, 55, 93, 99, 121, 155, 165, 167, 279, 341, 363, 465, 495, 501, 605, 835, 1023, 1089, 1395, 1503, 1705, 1815, 1837, 2505, 3069, 3751, 5115, 5177, 5445, 5511, 7515, 9185, 11253, 15345, 15531, 16533, 18755, 20207, 25885, 27555, 33759, 46593, 56265, 56947, 60621, 77655, 82665, 101035, 168795, 170841, 181863, 232965, 284735, 303105, 512523, 626417, 854205, 909315, 1879251, 2562615, 3132085, 5637753, 9396255, 28188765]

約数ペア:

[(1, 28188765), (3, 9396255), (5, 5637753), (9, 3132085), (11, 2562615), (15, 1879251), (31, 909315), (33, 854205), (45, 626417), (55, 512523), (93, 303105), (99, 284735), (121, 232965), (155, 181863), (165, 170841), (167, 168795), (279, 101035), (341, 82665), (363, 77655), (465, 60621), (495, 56947), (501, 56265), (605, 46593), (835, 33759), (1023, 27555), (1089, 25885), (1395, 20207), (1503, 18755), (1705, 16533), (1815, 15531), (1837, 15345), (2505, 11253), (3069, 9185), (3751, 7515), (5115, 5511), (5177, 5445)]