9649220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 23358720

約数和(自身を除く): 13709500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 439, 628, 785, 878, 1099, 1570, 1756, 2195, 2198, 3073, 3140, 4390, 4396, 5495, 6146, 8780, 10990, 12292, 15365, 21980, 30730, 61460, 68923, 137846, 275692, 344615, 482461, 689230, 964922, 1378460, 1929844, 2412305, 4824610, 9649220]

約数ペア:

[(1, 9649220), (2, 4824610), (4, 2412305), (5, 1929844), (7, 1378460), (10, 964922), (14, 689230), (20, 482461), (28, 344615), (35, 275692), (70, 137846), (140, 68923), (157, 61460), (314, 30730), (439, 21980), (628, 15365), (785, 12292), (878, 10990), (1099, 8780), (1570, 6146), (1756, 5495), (2195, 4396), (2198, 4390), (3073, 3140)]