220447620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1224709}}^1$

素因数の和:1224724

約数の個数: 36

約数和(自身を含む): 668691660

約数和(自身を除く): 448244040

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1224709, 2449418, 3674127, 4898836, 6123545, 7348254, 11022381, 12247090, 14696508, 18370635, 22044762, 24494180, 36741270, 44089524, 55111905, 73482540, 110223810, 220447620]

約数ペア:

[(1, 220447620), (2, 110223810), (3, 73482540), (4, 55111905), (5, 44089524), (6, 36741270), (9, 24494180), (10, 22044762), (12, 18370635), (15, 14696508), (18, 12247090), (20, 11022381), (30, 7348254), (36, 6123545), (45, 4898836), (60, 3674127), (90, 2449418), (180, 1224709)]