65365480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39857}}^1$

素因数の和:39909

約数の個数: 32

約数和(自身を含む): 150663240

約数和(自身を除く): 85297760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39857, 79714, 159428, 199285, 318856, 398570, 797140, 1594280, 1634137, 3268274, 6536548, 8170685, 13073096, 16341370, 32682740, 65365480]

約数ペア:

[(1, 65365480), (2, 32682740), (4, 16341370), (5, 13073096), (8, 8170685), (10, 6536548), (20, 3268274), (40, 1634137), (41, 1594280), (82, 797140), (164, 398570), (205, 318856), (328, 199285), (410, 159428), (820, 79714), (1640, 39857)]