2018199640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{827131}}^1$

素因数の和:827203

約数の個数: 32

約数和(自身を含む): 4615396560

約数和(自身を除く): 2597196920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 827131, 1654262, 3308524, 4135655, 6617048, 8271310, 16542620, 33085240, 50454991, 100909982, 201819964, 252274955, 403639928, 504549910, 1009099820, 2018199640]

約数ペア:

[(1, 2018199640), (2, 1009099820), (4, 504549910), (5, 403639928), (8, 252274955), (10, 201819964), (20, 100909982), (40, 50454991), (61, 33085240), (122, 16542620), (244, 8271310), (305, 6617048), (488, 4135655), (610, 3308524), (1220, 1654262), (2440, 827131)]