80859220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{310997}}^1$

素因数の和:311019

約数の個数: 24

約数和(自身を含む): 182866824

約数和(自身を除く): 102007604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 310997, 621994, 1243988, 1554985, 3109970, 4042961, 6219940, 8085922, 16171844, 20214805, 40429610, 80859220]

約数ペア:

[(1, 80859220), (2, 40429610), (4, 20214805), (5, 16171844), (10, 8085922), (13, 6219940), (20, 4042961), (26, 3109970), (52, 1554985), (65, 1243988), (130, 621994), (260, 310997)]