399227344

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{300623}}^1$

素因数の和:300714

約数の個数: 20

約数和(自身を含む): 782824896

約数和(自身を除く): 383597552

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 300623, 601246, 1202492, 2404984, 4809968, 24951709, 49903418, 99806836, 199613672, 399227344]

約数ペア:

[(1, 399227344), (2, 199613672), (4, 99806836), (8, 49903418), (16, 24951709), (83, 4809968), (166, 2404984), (332, 1202492), (664, 601246), (1328, 300623)]