8120040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:602

約数の個数: 64

約数和(自身を含む): 24572160

約数和(自身を除く): 16452120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 431, 471, 628, 785, 862, 942, 1256, 1293, 1570, 1724, 1884, 2155, 2355, 2586, 3140, 3448, 3768, 4310, 4710, 5172, 6280, 6465, 8620, 9420, 10344, 12930, 17240, 18840, 25860, 51720, 67667, 135334, 203001, 270668, 338335, 406002, 541336, 676670, 812004, 1015005, 1353340, 1624008, 2030010, 2706680, 4060020, 8120040]

約数ペア:

[(1, 8120040), (2, 4060020), (3, 2706680), (4, 2030010), (5, 1624008), (6, 1353340), (8, 1015005), (10, 812004), (12, 676670), (15, 541336), (20, 406002), (24, 338335), (30, 270668), (40, 203001), (60, 135334), (120, 67667), (157, 51720), (314, 25860), (431, 18840), (471, 17240), (628, 12930), (785, 10344), (862, 9420), (942, 8620), (1256, 6465), (1293, 6280), (1570, 5172), (1724, 4710), (1884, 4310), (2155, 3768), (2355, 3448), (2586, 3140)]