20408580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113381}}^1$

素因数の和:113396

約数の個数: 36

約数和(自身を含む): 61906572

約数和(自身を除く): 41497992

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 113381, 226762, 340143, 453524, 566905, 680286, 1020429, 1133810, 1360572, 1700715, 2040858, 2267620, 3401430, 4081716, 5102145, 6802860, 10204290, 20408580]

約数ペア:

[(1, 20408580), (2, 10204290), (3, 6802860), (4, 5102145), (5, 4081716), (6, 3401430), (9, 2267620), (10, 2040858), (12, 1700715), (15, 1360572), (18, 1133810), (20, 1020429), (30, 680286), (36, 566905), (45, 453524), (60, 340143), (90, 226762), (180, 113381)]