155220875

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{977}}^1$

素因数の和:1064

約数の個数: 32

約数和(自身を含む): 205051392

約数和(自身を除く): 49830517

約数列:

[1, 5, 25, 31, 41, 125, 155, 205, 775, 977, 1025, 1271, 3875, 4885, 5125, 6355, 24425, 30287, 31775, 40057, 122125, 151435, 158875, 200285, 757175, 1001425, 1241767, 3785875, 5007125, 6208835, 31044175, 155220875]

約数ペア:

[(1, 155220875), (5, 31044175), (25, 6208835), (31, 5007125), (41, 3785875), (125, 1241767), (155, 1001425), (205, 757175), (775, 200285), (977, 158875), (1025, 151435), (1271, 122125), (3875, 40057), (4885, 31775), (5125, 30287), (6355, 24425)]