131988040

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{7349}}^1$

素因数の和:7809

約数の個数: 32

約数和(自身を含む): 297675000

約数和(自身を除く): 165686960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 1796, 2245, 3592, 4490, 7349, 8980, 14698, 17960, 29396, 36745, 58792, 73490, 146980, 293960, 3299701, 6599402, 13198804, 16498505, 26397608, 32997010, 65994020, 131988040]

約数ペア:

[(1, 131988040), (2, 65994020), (4, 32997010), (5, 26397608), (8, 16498505), (10, 13198804), (20, 6599402), (40, 3299701), (449, 293960), (898, 146980), (1796, 73490), (2245, 58792), (3592, 36745), (4490, 29396), (7349, 17960), (8980, 14698)]