642286988

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{222707}}^1$

素因数の和:222821

約数の個数: 24

約数和(自身を含む): 1297051392

約数和(自身を除く): 654764404

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 222707, 445414, 890828, 1558949, 3117898, 6235796, 22938821, 45877642, 91755284, 160571747, 321143494, 642286988]

約数ペア:

[(1, 642286988), (2, 321143494), (4, 160571747), (7, 91755284), (14, 45877642), (28, 22938821), (103, 6235796), (206, 3117898), (412, 1558949), (721, 890828), (1442, 445414), (2884, 222707)]