20798920610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{159991697}}^1$

素因数の和:159991717

約数の個数: 16

約数和(自身を含む): 40317907896

約数和(自身を除く): 19518987286

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 159991697, 319983394, 799958485, 1599916970, 2079892061, 4159784122, 10399460305, 20798920610]

約数ペア:

[(1, 20798920610), (2, 10399460305), (5, 4159784122), (10, 2079892061), (13, 1599916970), (26, 799958485), (65, 319983394), (130, 159991697)]