400018556

素因数分解:

$2^2\times 7^2\times {\mathrm{439}}^1\times {\mathrm{4649}}^1$

素因数の和:5106

約数の個数: 36

約数和(自身を含む): 816354000

約数和(自身を除く): 416335444

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 439, 878, 1756, 3073, 4649, 6146, 9298, 12292, 18596, 21511, 32543, 43022, 65086, 86044, 130172, 227801, 455602, 911204, 2040911, 4081822, 8163644, 14286377, 28572754, 57145508, 100004639, 200009278, 400018556]

約数ペア:

[(1, 400018556), (2, 200009278), (4, 100004639), (7, 57145508), (14, 28572754), (28, 14286377), (49, 8163644), (98, 4081822), (196, 2040911), (439, 911204), (878, 455602), (1756, 227801), (3073, 130172), (4649, 86044), (6146, 65086), (9298, 43022), (12292, 32543), (18596, 21511)]