71956980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{399761}}^1$

素因数の和:399776

約数の個数: 36

約数和(自身を含む): 218270052

約数和(自身を除く): 146313072

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 399761, 799522, 1199283, 1599044, 1998805, 2398566, 3597849, 3997610, 4797132, 5996415, 7195698, 7995220, 11992830, 14391396, 17989245, 23985660, 35978490, 71956980]

約数ペア:

[(1, 71956980), (2, 35978490), (3, 23985660), (4, 17989245), (5, 14391396), (6, 11992830), (9, 7995220), (10, 7195698), (12, 5996415), (15, 4797132), (18, 3997610), (20, 3597849), (30, 2398566), (36, 1998805), (45, 1599044), (60, 1199283), (90, 799522), (180, 399761)]