81039385

素因数分解:

$5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{79}}^2$

素因数の和:230

約数の個数: 36

約数和(自身を含む): 116736228

約数和(自身を除く): 35696843

約数列:

[1, 5, 7, 35, 49, 53, 79, 245, 265, 371, 395, 553, 1855, 2597, 2765, 3871, 4187, 6241, 12985, 19355, 20935, 29309, 31205, 43687, 146545, 205163, 218435, 305809, 330773, 1025815, 1529045, 1653865, 2315411, 11577055, 16207877, 81039385]

約数ペア:

[(1, 81039385), (5, 16207877), (7, 11577055), (35, 2315411), (49, 1653865), (53, 1529045), (79, 1025815), (245, 330773), (265, 305809), (371, 218435), (395, 205163), (553, 146545), (1855, 43687), (2597, 31205), (2765, 29309), (3871, 20935), (4187, 19355), (6241, 12985)]