720295550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1108147}}^1$

素因数の和:1108172

約数の個数: 24

約数和(自身を含む): 1442808696

約数和(自身を除く): 722513146

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 1108147, 2216294, 5540735, 11081470, 14405911, 27703675, 28811822, 55407350, 72029555, 144059110, 360147775, 720295550]

約数ペア:

[(1, 720295550), (2, 360147775), (5, 144059110), (10, 72029555), (13, 55407350), (25, 28811822), (26, 27703675), (50, 14405911), (65, 11081470), (130, 5540735), (325, 2216294), (650, 1108147)]