2017717840

素因数分解:

$2^4\times 5^1\times {\mathrm{25221473}}^1$

素因数の和:25221486

約数の個数: 20

約数和(自身を含む): 4691194164

約数和(自身を除く): 2673476324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25221473, 50442946, 100885892, 126107365, 201771784, 252214730, 403543568, 504429460, 1008858920, 2017717840]

約数ペア:

[(1, 2017717840), (2, 1008858920), (4, 504429460), (5, 403543568), (8, 252214730), (10, 201771784), (16, 126107365), (20, 100885892), (40, 50442946), (80, 25221473)]