2017697840

素因数分解:

$2^4\times 5^1\times {\mathrm{25221223}}^1$

素因数の和:25221236

約数の個数: 20

約数和(自身を含む): 4691147664

約数和(自身を除く): 2673449824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25221223, 50442446, 100884892, 126106115, 201769784, 252212230, 403539568, 504424460, 1008848920, 2017697840]

約数ペア:

[(1, 2017697840), (2, 1008848920), (4, 504424460), (5, 403539568), (8, 252212230), (10, 201769784), (16, 126106115), (20, 100884892), (40, 50442446), (80, 25221223)]