20155860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{111977}}^1$

素因数の和:111992

約数の個数: 36

約数和(自身を含む): 61139988

約数和(自身を除く): 40984128

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 111977, 223954, 335931, 447908, 559885, 671862, 1007793, 1119770, 1343724, 1679655, 2015586, 2239540, 3359310, 4031172, 5038965, 6718620, 10077930, 20155860]

約数ペア:

[(1, 20155860), (2, 10077930), (3, 6718620), (4, 5038965), (5, 4031172), (6, 3359310), (9, 2239540), (10, 2015586), (12, 1679655), (15, 1343724), (18, 1119770), (20, 1007793), (30, 671862), (36, 559885), (45, 447908), (60, 335931), (90, 223954), (180, 111977)]