64867180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{66191}}^1$

素因数の和:66214

約数の個数: 36

約数和(自身を含む): 158463648

約数和(自身を除く): 93596468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 66191, 132382, 264764, 330955, 463337, 661910, 926674, 1323820, 1853348, 2316685, 3243359, 4633370, 6486718, 9266740, 12973436, 16216795, 32433590, 64867180]

約数ペア:

[(1, 64867180), (2, 32433590), (4, 16216795), (5, 12973436), (7, 9266740), (10, 6486718), (14, 4633370), (20, 3243359), (28, 2316685), (35, 1853348), (49, 1323820), (70, 926674), (98, 661910), (140, 463337), (196, 330955), (245, 264764), (490, 132382), (980, 66191)]