999640

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 2288880

約数和(自身を除く): 1289240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 373, 536, 670, 746, 1340, 1492, 1865, 2680, 2984, 3730, 7460, 14920, 24991, 49982, 99964, 124955, 199928, 249910, 499820, 999640]

約数ペア:

[(1, 999640), (2, 499820), (4, 249910), (5, 199928), (8, 124955), (10, 99964), (20, 49982), (40, 24991), (67, 14920), (134, 7460), (268, 3730), (335, 2984), (373, 2680), (536, 1865), (670, 1492), (746, 1340)]