1638311740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6301199}}^1$

素因数の和:6301221

約数の個数: 24

約数和(自身を含む): 3705105600

約数和(自身を除く): 2066793860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 6301199, 12602398, 25204796, 31505995, 63011990, 81915587, 126023980, 163831174, 327662348, 409577935, 819155870, 1638311740]

約数ペア:

[(1, 1638311740), (2, 819155870), (4, 409577935), (5, 327662348), (10, 163831174), (13, 126023980), (20, 81915587), (26, 63011990), (52, 31505995), (65, 25204796), (130, 12602398), (260, 6301199)]