20722860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115127}}^1$

素因数の和:115142

約数の個数: 36

約数和(自身を含む): 62859888

約数和(自身を除く): 42137028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115127, 230254, 345381, 460508, 575635, 690762, 1036143, 1151270, 1381524, 1726905, 2072286, 2302540, 3453810, 4144572, 5180715, 6907620, 10361430, 20722860]

約数ペア:

[(1, 20722860), (2, 10361430), (3, 6907620), (4, 5180715), (5, 4144572), (6, 3453810), (9, 2302540), (10, 2072286), (12, 1726905), (15, 1381524), (18, 1151270), (20, 1036143), (30, 690762), (36, 575635), (45, 460508), (60, 345381), (90, 230254), (180, 115127)]