2017991990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{419}}^1\times {\mathrm{9829}}^1$

素因数の和:10269

約数の個数: 48

約数和(自身を含む): 4235943600

約数和(自身を除く): 2217951610

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 419, 490, 838, 2095, 2933, 4190, 5866, 9829, 14665, 19658, 20531, 29330, 41062, 49145, 68803, 98290, 102655, 137606, 205310, 344015, 481621, 688030, 963242, 2408105, 4118351, 4816210, 8236702, 20591755, 28828457, 41183510, 57656914, 144142285, 201799199, 288284570, 403598398, 1008995995, 2017991990]

約数ペア:

[(1, 2017991990), (2, 1008995995), (5, 403598398), (7, 288284570), (10, 201799199), (14, 144142285), (35, 57656914), (49, 41183510), (70, 28828457), (98, 20591755), (245, 8236702), (419, 4816210), (490, 4118351), (838, 2408105), (2095, 963242), (2933, 688030), (4190, 481621), (5866, 344015), (9829, 205310), (14665, 137606), (19658, 102655), (20531, 98290), (29330, 68803), (41062, 49145)]