208754920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{474443}}^1$

素因数の和:474465

約数の個数: 32

約数和(自身を含む): 512399520

約数和(自身を除く): 303644600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 474443, 948886, 1897772, 2372215, 3795544, 4744430, 5218873, 9488860, 10437746, 18977720, 20875492, 26094365, 41750984, 52188730, 104377460, 208754920]

約数ペア:

[(1, 208754920), (2, 104377460), (4, 52188730), (5, 41750984), (8, 26094365), (10, 20875492), (11, 18977720), (20, 10437746), (22, 9488860), (40, 5218873), (44, 4744430), (55, 3795544), (88, 2372215), (110, 1897772), (220, 948886), (440, 474443)]