20090030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2459}}^1$

素因数の和:2528

約数の個数: 32

約数和(自身を含む): 38966400

約数和(自身を除く): 18876370

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1634, 2459, 4085, 4918, 8170, 12295, 24590, 46721, 93442, 105737, 211474, 233605, 467210, 528685, 1057370, 2009003, 4018006, 10045015, 20090030]

約数ペア:

[(1, 20090030), (2, 10045015), (5, 4018006), (10, 2009003), (19, 1057370), (38, 528685), (43, 467210), (86, 233605), (95, 211474), (190, 105737), (215, 93442), (430, 46721), (817, 24590), (1634, 12295), (2459, 8170), (4085, 4918)]