61638040

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{5563}}^1$

素因数の和:5851

約数の個数: 32

約数和(自身を含む): 139211280

約数和(自身を除く): 77573240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 5563, 11080, 11126, 22252, 27815, 44504, 55630, 111260, 222520, 1540951, 3081902, 6163804, 7704755, 12327608, 15409510, 30819020, 61638040]

約数ペア:

[(1, 61638040), (2, 30819020), (4, 15409510), (5, 12327608), (8, 7704755), (10, 6163804), (20, 3081902), (40, 1540951), (277, 222520), (554, 111260), (1108, 55630), (1385, 44504), (2216, 27815), (2770, 22252), (5540, 11126), (5563, 11080)]