21168800

素因数分解:

$2^5\times 5^2\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:630

約数の個数: 72

約数和(自身を含む): 52871616

約数和(自身を除く): 31702816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 80, 94, 100, 160, 188, 200, 235, 376, 400, 470, 563, 752, 800, 940, 1126, 1175, 1504, 1880, 2252, 2350, 2815, 3760, 4504, 4700, 5630, 7520, 9008, 9400, 11260, 14075, 18016, 18800, 22520, 26461, 28150, 37600, 45040, 52922, 56300, 90080, 105844, 112600, 132305, 211688, 225200, 264610, 423376, 450400, 529220, 661525, 846752, 1058440, 1323050, 2116880, 2646100, 4233760, 5292200, 10584400, 21168800]

約数ペア:

[(1, 21168800), (2, 10584400), (4, 5292200), (5, 4233760), (8, 2646100), (10, 2116880), (16, 1323050), (20, 1058440), (25, 846752), (32, 661525), (40, 529220), (47, 450400), (50, 423376), (80, 264610), (94, 225200), (100, 211688), (160, 132305), (188, 112600), (200, 105844), (235, 90080), (376, 56300), (400, 52922), (470, 45040), (563, 37600), (752, 28150), (800, 26461), (940, 22520), (1126, 18800), (1175, 18016), (1504, 14075), (1880, 11260), (2252, 9400), (2350, 9008), (2815, 7520), (3760, 5630), (4504, 4700)]