28249780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{607}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 64350720

約数和(自身を除く): 36100940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 179, 260, 358, 607, 716, 895, 1214, 1790, 2327, 2428, 3035, 3580, 4654, 6070, 7891, 9308, 11635, 12140, 15782, 23270, 31564, 39455, 46540, 78910, 108653, 157820, 217306, 434612, 543265, 1086530, 1412489, 2173060, 2824978, 5649956, 7062445, 14124890, 28249780]

約数ペア:

[(1, 28249780), (2, 14124890), (4, 7062445), (5, 5649956), (10, 2824978), (13, 2173060), (20, 1412489), (26, 1086530), (52, 543265), (65, 434612), (130, 217306), (179, 157820), (260, 108653), (358, 78910), (607, 46540), (716, 39455), (895, 31564), (1214, 23270), (1790, 15782), (2327, 12140), (2428, 11635), (3035, 9308), (3580, 7891), (4654, 6070)]