261511920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{363211}}^1$

素因数の和:363230

約数の個数: 60

約数和(自身を含む): 878246616

約数和(自身を除く): 616734696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 363211, 726422, 1089633, 1452844, 1816055, 2179266, 2905688, 3268899, 3632110, 4358532, 5448165, 5811376, 6537798, 7264220, 8717064, 10896330, 13075596, 14528440, 16344495, 17434128, 21792660, 26151192, 29056880, 32688990, 43585320, 52302384, 65377980, 87170640, 130755960, 261511920]

約数ペア:

[(1, 261511920), (2, 130755960), (3, 87170640), (4, 65377980), (5, 52302384), (6, 43585320), (8, 32688990), (9, 29056880), (10, 26151192), (12, 21792660), (15, 17434128), (16, 16344495), (18, 14528440), (20, 13075596), (24, 10896330), (30, 8717064), (36, 7264220), (40, 6537798), (45, 5811376), (48, 5448165), (60, 4358532), (72, 3632110), (80, 3268899), (90, 2905688), (120, 2179266), (144, 1816055), (180, 1452844), (240, 1089633), (360, 726422), (720, 363211)]