2556420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 7233408

約数和(自身を除く): 4676988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 311, 411, 548, 622, 685, 822, 933, 1244, 1370, 1555, 1644, 1866, 2055, 2740, 3110, 3732, 4110, 4665, 6220, 8220, 9330, 18660, 42607, 85214, 127821, 170428, 213035, 255642, 426070, 511284, 639105, 852140, 1278210, 2556420]

約数ペア:

[(1, 2556420), (2, 1278210), (3, 852140), (4, 639105), (5, 511284), (6, 426070), (10, 255642), (12, 213035), (15, 170428), (20, 127821), (30, 85214), (60, 42607), (137, 18660), (274, 9330), (311, 8220), (411, 6220), (548, 4665), (622, 4110), (685, 3732), (822, 3110), (933, 2740), (1244, 2055), (1370, 1866), (1555, 1644)]