399517190

素因数分解:

$2^1\times 5^1\times {\mathrm{1427}}^1\times {\mathrm{27997}}^1$

素因数の和:29431

約数の個数: 16

約数和(自身を含む): 719660592

約数和(自身を除く): 320143402

約数列:

[1, 2, 5, 10, 1427, 2854, 7135, 14270, 27997, 55994, 139985, 279970, 39951719, 79903438, 199758595, 399517190]

約数ペア:

[(1, 399517190), (2, 199758595), (5, 79903438), (10, 39951719), (1427, 279970), (2854, 139985), (7135, 55994), (14270, 27997)]