81238072

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{2713}}^1$

素因数の和:2935

約数の個数: 32

約数和(自身を含む): 161211600

約数和(自身を除く): 79973528

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 197, 394, 788, 1576, 2713, 3743, 5426, 7486, 10852, 14972, 21704, 29944, 51547, 103094, 206188, 412376, 534461, 1068922, 2137844, 4275688, 10154759, 20309518, 40619036, 81238072]

約数ペア:

[(1, 81238072), (2, 40619036), (4, 20309518), (8, 10154759), (19, 4275688), (38, 2137844), (76, 1068922), (152, 534461), (197, 412376), (394, 206188), (788, 103094), (1576, 51547), (2713, 29944), (3743, 21704), (5426, 14972), (7486, 10852)]