67779820

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{17203}}^1$

素因数の和:17409

約数の個数: 24

約数和(自身を含む): 143068464

約数和(自身を除く): 75288644

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 17203, 34406, 68812, 86015, 172030, 344060, 3388991, 6777982, 13555964, 16944955, 33889910, 67779820]

約数ペア:

[(1, 67779820), (2, 33889910), (4, 16944955), (5, 13555964), (10, 6777982), (20, 3388991), (197, 344060), (394, 172030), (788, 86015), (985, 68812), (1970, 34406), (3940, 17203)]