72979020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{405439}}^1$

素因数の和:405454

約数の個数: 36

約数和(自身を含む): 221370240

約数和(自身を除く): 148391220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 405439, 810878, 1216317, 1621756, 2027195, 2432634, 3648951, 4054390, 4865268, 6081585, 7297902, 8108780, 12163170, 14595804, 18244755, 24326340, 36489510, 72979020]

約数ペア:

[(1, 72979020), (2, 36489510), (3, 24326340), (4, 18244755), (5, 14595804), (6, 12163170), (9, 8108780), (10, 7297902), (12, 6081585), (15, 4865268), (18, 4054390), (20, 3648951), (30, 2432634), (36, 2027195), (45, 1621756), (60, 1216317), (90, 810878), (180, 405439)]