199919992

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{806129}}^1$

素因数の和:806166

約数の個数: 16

約数和(自身を含む): 386942400

約数和(自身を除く): 187022408

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 806129, 1612258, 3224516, 6449032, 24989999, 49979998, 99959996, 199919992]

約数ペア:

[(1, 199919992), (2, 99959996), (4, 49979998), (8, 24989999), (31, 6449032), (62, 3224516), (124, 1612258), (248, 806129)]