51783760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1039}}^1$

素因数の和:1148

約数の個数: 80

約数和(自身を含む): 139276800

約数和(自身を除く): 87493040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 712, 890, 1039, 1246, 1424, 1780, 2078, 2492, 3115, 3560, 4156, 4984, 5195, 6230, 7120, 7273, 8312, 9968, 10390, 12460, 14546, 16624, 20780, 24920, 29092, 36365, 41560, 49840, 58184, 72730, 83120, 92471, 116368, 145460, 184942, 290920, 369884, 462355, 581840, 647297, 739768, 924710, 1294594, 1479536, 1849420, 2589188, 3236485, 3698840, 5178376, 6472970, 7397680, 10356752, 12945940, 25891880, 51783760]

約数ペア:

[(1, 51783760), (2, 25891880), (4, 12945940), (5, 10356752), (7, 7397680), (8, 6472970), (10, 5178376), (14, 3698840), (16, 3236485), (20, 2589188), (28, 1849420), (35, 1479536), (40, 1294594), (56, 924710), (70, 739768), (80, 647297), (89, 581840), (112, 462355), (140, 369884), (178, 290920), (280, 184942), (356, 145460), (445, 116368), (560, 92471), (623, 83120), (712, 72730), (890, 58184), (1039, 49840), (1246, 41560), (1424, 36365), (1780, 29092), (2078, 24920), (2492, 20780), (3115, 16624), (3560, 14546), (4156, 12460), (4984, 10390), (5195, 9968), (6230, 8312), (7120, 7273)]