81465660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{452587}}^1$

素因数の和:452602

約数の個数: 36

約数和(自身を含む): 247113048

約数和(自身を除く): 165647388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 452587, 905174, 1357761, 1810348, 2262935, 2715522, 4073283, 4525870, 5431044, 6788805, 8146566, 9051740, 13577610, 16293132, 20366415, 27155220, 40732830, 81465660]

約数ペア:

[(1, 81465660), (2, 40732830), (3, 27155220), (4, 20366415), (5, 16293132), (6, 13577610), (9, 9051740), (10, 8146566), (12, 6788805), (15, 5431044), (18, 4525870), (20, 4073283), (30, 2715522), (36, 2262935), (45, 1810348), (60, 1357761), (90, 905174), (180, 452587)]