990207.0000000

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{22369}}^1$

素因数の和:22395

約数の個数: 24

約数和(自身を含む): 16911720

約数和(自身を除く): 9306260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 22369, 44738, 89476, 111845, 223690, 380273, 447380, 760546, 1521092, 1901365, 3802730, 7605460]

約数ペア:

[(1, 7605460), (2, 3802730), (4, 1901365), (5, 1521092), (10, 760546), (17, 447380), (20, 380273), (34, 223690), (68, 111845), (85, 89476), (170, 44738), (340, 22369)]