71990555

素因数分解:

$5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{3229}}^1$

素因数の和:3268

約数の個数: 32

約数和(自身を含む): 108528000

約数和(自身を除く): 36537445

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 343, 455, 637, 1715, 3185, 3229, 4459, 16145, 22295, 22603, 41977, 113015, 158221, 209885, 293839, 791105, 1107547, 1469195, 2056873, 5537735, 10284365, 14398111, 71990555]

約数ペア:

[(1, 71990555), (5, 14398111), (7, 10284365), (13, 5537735), (35, 2056873), (49, 1469195), (65, 1107547), (91, 791105), (245, 293839), (343, 209885), (455, 158221), (637, 113015), (1715, 41977), (3185, 22603), (3229, 22295), (4459, 16145)]