81149220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{450829}}^1$

素因数の和:450844

約数の個数: 36

約数和(自身を含む): 246153180

約数和(自身を除く): 165003960

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 450829, 901658, 1352487, 1803316, 2254145, 2704974, 4057461, 4508290, 5409948, 6762435, 8114922, 9016580, 13524870, 16229844, 20287305, 27049740, 40574610, 81149220]

約数ペア:

[(1, 81149220), (2, 40574610), (3, 27049740), (4, 20287305), (5, 16229844), (6, 13524870), (9, 9016580), (10, 8114922), (12, 6762435), (15, 5409948), (18, 4508290), (20, 4057461), (30, 2704974), (36, 2254145), (45, 1803316), (60, 1352487), (90, 901658), (180, 450829)]