2018487760

素因数分解:

$2^4\times 5^1\times {\mathrm{25231097}}^1$

素因数の和:25231110

約数の個数: 20

約数和(自身を含む): 4692984228

約数和(自身を除く): 2674496468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25231097, 50462194, 100924388, 126155485, 201848776, 252310970, 403697552, 504621940, 1009243880, 2018487760]

約数ペア:

[(1, 2018487760), (2, 1009243880), (4, 504621940), (5, 403697552), (8, 252310970), (10, 201848776), (16, 126155485), (20, 100924388), (40, 50462194), (80, 25231097)]