1280454940

素因数分解:

$2^2\times 5^1\times {\mathrm{4817}}^1\times {\mathrm{13291}}^1$

素因数の和:18117

約数の個数: 24

約数和(自身を含む): 2689715952

約数和(自身を除く): 1409261012

約数列:

[1, 2, 4, 5, 10, 20, 4817, 9634, 13291, 19268, 24085, 26582, 48170, 53164, 66455, 96340, 132910, 265820, 64022747, 128045494, 256090988, 320113735, 640227470, 1280454940]

約数ペア:

[(1, 1280454940), (2, 640227470), (4, 320113735), (5, 256090988), (10, 128045494), (20, 64022747), (4817, 265820), (9634, 132910), (13291, 96340), (19268, 66455), (24085, 53164), (26582, 48170)]