25891880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1039}}^1$

素因数の和:1146

約数の個数: 64

約数和(自身を含む): 67392000

約数和(自身を除く): 41500120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1039, 1246, 1780, 2078, 2492, 3115, 3560, 4156, 4984, 5195, 6230, 7273, 8312, 10390, 12460, 14546, 20780, 24920, 29092, 36365, 41560, 58184, 72730, 92471, 145460, 184942, 290920, 369884, 462355, 647297, 739768, 924710, 1294594, 1849420, 2589188, 3236485, 3698840, 5178376, 6472970, 12945940, 25891880]

約数ペア:

[(1, 25891880), (2, 12945940), (4, 6472970), (5, 5178376), (7, 3698840), (8, 3236485), (10, 2589188), (14, 1849420), (20, 1294594), (28, 924710), (35, 739768), (40, 647297), (56, 462355), (70, 369884), (89, 290920), (140, 184942), (178, 145460), (280, 92471), (356, 72730), (445, 58184), (623, 41560), (712, 36365), (890, 29092), (1039, 24920), (1246, 20780), (1780, 14546), (2078, 12460), (2492, 10390), (3115, 8312), (3560, 7273), (4156, 6230), (4984, 5195)]