9991850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 20864736

約数和(自身を除く): 10872886

約数列:

[1, 2, 5, 10, 11, 22, 25, 37, 50, 55, 74, 110, 185, 275, 370, 407, 491, 550, 814, 925, 982, 1850, 2035, 2455, 4070, 4910, 5401, 10175, 10802, 12275, 18167, 20350, 24550, 27005, 36334, 54010, 90835, 135025, 181670, 199837, 270050, 399674, 454175, 908350, 999185, 1998370, 4995925, 9991850]

約数ペア:

[(1, 9991850), (2, 4995925), (5, 1998370), (10, 999185), (11, 908350), (22, 454175), (25, 399674), (37, 270050), (50, 199837), (55, 181670), (74, 135025), (110, 90835), (185, 54010), (275, 36334), (370, 27005), (407, 24550), (491, 20350), (550, 18167), (814, 12275), (925, 10802), (982, 10175), (1850, 5401), (2035, 4910), (2455, 4070)]