20370220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78347}}^1$

素因数の和:78369

約数の個数: 24

約数和(自身を含む): 46068624

約数和(自身を除く): 25698404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 78347, 156694, 313388, 391735, 783470, 1018511, 1566940, 2037022, 4074044, 5092555, 10185110, 20370220]

約数ペア:

[(1, 20370220), (2, 10185110), (4, 5092555), (5, 4074044), (10, 2037022), (13, 1566940), (20, 1018511), (26, 783470), (52, 391735), (65, 313388), (130, 156694), (260, 78347)]