81277168

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5297}}^1$

素因数の和:5449

約数の個数: 40

約数和(自身を含む): 181318752

約数和(自身を除く): 100041584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1918, 2192, 3836, 5297, 7672, 10594, 15344, 21188, 37079, 42376, 74158, 84752, 148316, 296632, 593264, 725689, 1451378, 2902756, 5079823, 5805512, 10159646, 11611024, 20319292, 40638584, 81277168]

約数ペア:

[(1, 81277168), (2, 40638584), (4, 20319292), (7, 11611024), (8, 10159646), (14, 5805512), (16, 5079823), (28, 2902756), (56, 1451378), (112, 725689), (137, 593264), (274, 296632), (548, 148316), (959, 84752), (1096, 74158), (1918, 42376), (2192, 37079), (3836, 21188), (5297, 15344), (7672, 10594)]