80042781

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{653}}^1$

素因数の和:1125

約数の個数: 32

約数和(自身を含む): 131846400

約数和(自身を除く): 51803619

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 449, 653, 1347, 1959, 3143, 4571, 5837, 8489, 9429, 13713, 17511, 25467, 40859, 59423, 122577, 178269, 293197, 879591, 2052379, 3811561, 6157137, 11434683, 26680927, 80042781]

約数ペア:

[(1, 80042781), (3, 26680927), (7, 11434683), (13, 6157137), (21, 3811561), (39, 2052379), (91, 879591), (273, 293197), (449, 178269), (653, 122577), (1347, 59423), (1959, 40859), (3143, 25467), (4571, 17511), (5837, 13713), (8489, 9429)]