20167940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77569}}^1$

素因数の和:77591

約数の個数: 24

約数和(自身を含む): 45611160

約数和(自身を除く): 25443220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77569, 155138, 310276, 387845, 775690, 1008397, 1551380, 2016794, 4033588, 5041985, 10083970, 20167940]

約数ペア:

[(1, 20167940), (2, 10083970), (4, 5041985), (5, 4033588), (10, 2016794), (13, 1551380), (20, 1008397), (26, 775690), (52, 387845), (65, 310276), (130, 155138), (260, 77569)]