8287240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15937}}^1$

素因数の和:15961

約数の個数: 32

約数和(自身を含む): 20081880

約数和(自身を除く): 11794640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15937, 31874, 63748, 79685, 127496, 159370, 207181, 318740, 414362, 637480, 828724, 1035905, 1657448, 2071810, 4143620, 8287240]

約数ペア:

[(1, 8287240), (2, 4143620), (4, 2071810), (5, 1657448), (8, 1035905), (10, 828724), (13, 637480), (20, 414362), (26, 318740), (40, 207181), (52, 159370), (65, 127496), (104, 79685), (130, 63748), (260, 31874), (520, 15937)]