80491970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619169}}^1$

素因数の和:619189

約数の個数: 16

約数和(自身を含む): 156030840

約数和(自身を除く): 75538870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 619169, 1238338, 3095845, 6191690, 8049197, 16098394, 40245985, 80491970]

約数ペア:

[(1, 80491970), (2, 40245985), (5, 16098394), (10, 8049197), (13, 6191690), (26, 3095845), (65, 1238338), (130, 619169)]