85912280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 199584000

約数和(自身を除く): 113671720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 199, 215, 251, 344, 398, 430, 502, 796, 860, 995, 1004, 1255, 1592, 1720, 1990, 2008, 2510, 3980, 5020, 7960, 8557, 10040, 10793, 17114, 21586, 34228, 42785, 43172, 49949, 53965, 68456, 85570, 86344, 99898, 107930, 171140, 199796, 215860, 249745, 342280, 399592, 431720, 499490, 998980, 1997960, 2147807, 4295614, 8591228, 10739035, 17182456, 21478070, 42956140, 85912280]

約数ペア:

[(1, 85912280), (2, 42956140), (4, 21478070), (5, 17182456), (8, 10739035), (10, 8591228), (20, 4295614), (40, 2147807), (43, 1997960), (86, 998980), (172, 499490), (199, 431720), (215, 399592), (251, 342280), (344, 249745), (398, 215860), (430, 199796), (502, 171140), (796, 107930), (860, 99898), (995, 86344), (1004, 85570), (1255, 68456), (1592, 53965), (1720, 49949), (1990, 43172), (2008, 42785), (2510, 34228), (3980, 21586), (5020, 17114), (7960, 10793), (8557, 10040)]