72987660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{405487}}^1$

素因数の和:405502

約数の個数: 36

約数和(自身を含む): 221396448

約数和(自身を除く): 148408788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 405487, 810974, 1216461, 1621948, 2027435, 2432922, 3649383, 4054870, 4865844, 6082305, 7298766, 8109740, 12164610, 14597532, 18246915, 24329220, 36493830, 72987660]

約数ペア:

[(1, 72987660), (2, 36493830), (3, 24329220), (4, 18246915), (5, 14597532), (6, 12164610), (9, 8109740), (10, 7298766), (12, 6082305), (15, 4865844), (18, 4054870), (20, 3649383), (30, 2432922), (36, 2027435), (45, 1621948), (60, 1216461), (90, 810974), (180, 405487)]