12801478820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49236457}}^1$

素因数の和:49236479

約数の個数: 24

約数和(自身を含む): 28951037304

約数和(自身を除く): 16149558484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49236457, 98472914, 196945828, 246182285, 492364570, 640073941, 984729140, 1280147882, 2560295764, 3200369705, 6400739410, 12801478820]

約数ペア:

[(1, 12801478820), (2, 6400739410), (4, 3200369705), (5, 2560295764), (10, 1280147882), (13, 984729140), (20, 640073941), (26, 492364570), (52, 246182285), (65, 196945828), (130, 98472914), (260, 49236457)]