172389780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{957721}}^1$

素因数の和:957736

約数の個数: 36

約数和(自身を含む): 522916212

約数和(自身を除く): 350526432

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 957721, 1915442, 2873163, 3830884, 4788605, 5746326, 8619489, 9577210, 11492652, 14365815, 17238978, 19154420, 28731630, 34477956, 43097445, 57463260, 86194890, 172389780]

約数ペア:

[(1, 172389780), (2, 86194890), (3, 57463260), (4, 43097445), (5, 34477956), (6, 28731630), (9, 19154420), (10, 17238978), (12, 14365815), (15, 11492652), (18, 9577210), (20, 8619489), (30, 5746326), (36, 4788605), (45, 3830884), (60, 2873163), (90, 1915442), (180, 957721)]