20849200

素因数分解:

$2^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1109}}^1$

素因数の和:1174

約数の個数: 60

約数和(自身を含む): 51202080

約数和(自身を除く): 30352880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 188, 200, 235, 376, 400, 470, 752, 940, 1109, 1175, 1880, 2218, 2350, 3760, 4436, 4700, 5545, 8872, 9400, 11090, 17744, 18800, 22180, 27725, 44360, 52123, 55450, 88720, 104246, 110900, 208492, 221800, 260615, 416984, 443600, 521230, 833968, 1042460, 1303075, 2084920, 2606150, 4169840, 5212300, 10424600, 20849200]

約数ペア:

[(1, 20849200), (2, 10424600), (4, 5212300), (5, 4169840), (8, 2606150), (10, 2084920), (16, 1303075), (20, 1042460), (25, 833968), (40, 521230), (47, 443600), (50, 416984), (80, 260615), (94, 221800), (100, 208492), (188, 110900), (200, 104246), (235, 88720), (376, 55450), (400, 52123), (470, 44360), (752, 27725), (940, 22180), (1109, 18800), (1175, 17744), (1880, 11090), (2218, 9400), (2350, 8872), (3760, 5545), (4436, 4700)]