20037940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77069}}^1$

素因数の和:77091

約数の個数: 24

約数和(自身を含む): 45317160

約数和(自身を除く): 25279220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77069, 154138, 308276, 385345, 770690, 1001897, 1541380, 2003794, 4007588, 5009485, 10018970, 20037940]

約数ペア:

[(1, 20037940), (2, 10018970), (4, 5009485), (5, 4007588), (10, 2003794), (13, 1541380), (20, 1001897), (26, 770690), (52, 385345), (65, 308276), (130, 154138), (260, 77069)]