15820515

素因数分解:

$3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 29484000

約数和(自身を除く): 13663485

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 243, 261, 405, 435, 449, 783, 1215, 1305, 1347, 2245, 2349, 3915, 4041, 6735, 7047, 11745, 12123, 13021, 20205, 35235, 36369, 39063, 60615, 65105, 109107, 117189, 181845, 195315, 351567, 545535, 585945, 1054701, 1757835, 3164103, 5273505, 15820515]

約数ペア:

[(1, 15820515), (3, 5273505), (5, 3164103), (9, 1757835), (15, 1054701), (27, 585945), (29, 545535), (45, 351567), (81, 195315), (87, 181845), (135, 117189), (145, 109107), (243, 65105), (261, 60615), (405, 39063), (435, 36369), (449, 35235), (783, 20205), (1215, 13021), (1305, 12123), (1347, 11745), (2245, 7047), (2349, 6735), (3915, 4041)]