81241965

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{739}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 161616000

約数和(自身を除く): 80374035

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 349, 739, 1047, 1745, 2217, 2443, 3141, 3695, 5173, 5235, 6651, 7329, 11085, 12215, 15519, 15705, 21987, 25865, 33255, 36645, 46557, 77595, 109935, 232785, 257911, 773733, 1289555, 1805377, 2321199, 3868665, 5416131, 9026885, 11605995, 16248393, 27080655, 81241965]

約数ペア:

[(1, 81241965), (3, 27080655), (5, 16248393), (7, 11605995), (9, 9026885), (15, 5416131), (21, 3868665), (35, 2321199), (45, 1805377), (63, 1289555), (105, 773733), (315, 257911), (349, 232785), (739, 109935), (1047, 77595), (1745, 46557), (2217, 36645), (2443, 33255), (3141, 25865), (3695, 21987), (5173, 15705), (5235, 15519), (6651, 12215), (7329, 11085)]