20562540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{881}}^1$

素因数の和:1282

約数の個数: 48

約数和(自身を含む): 57788640

約数和(自身を除く): 37226100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 389, 778, 881, 1167, 1556, 1762, 1945, 2334, 2643, 3524, 3890, 4405, 4668, 5286, 5835, 7780, 8810, 10572, 11670, 13215, 17620, 23340, 26430, 52860, 342709, 685418, 1028127, 1370836, 1713545, 2056254, 3427090, 4112508, 5140635, 6854180, 10281270, 20562540]

約数ペア:

[(1, 20562540), (2, 10281270), (3, 6854180), (4, 5140635), (5, 4112508), (6, 3427090), (10, 2056254), (12, 1713545), (15, 1370836), (20, 1028127), (30, 685418), (60, 342709), (389, 52860), (778, 26430), (881, 23340), (1167, 17620), (1556, 13215), (1762, 11670), (1945, 10572), (2334, 8810), (2643, 7780), (3524, 5835), (3890, 5286), (4405, 4668)]