213055480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{1103}}^1$

素因数の和:1564

約数の個数: 64

約数和(自身を含む): 524620800

約数和(自身を除く): 311565320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 439, 440, 878, 1103, 1756, 2195, 2206, 3512, 4390, 4412, 4829, 5515, 8780, 8824, 9658, 11030, 12133, 17560, 19316, 22060, 24145, 24266, 38632, 44120, 48290, 48532, 60665, 96580, 97064, 121330, 193160, 242660, 484217, 485320, 968434, 1936868, 2421085, 3873736, 4842170, 5326387, 9684340, 10652774, 19368680, 21305548, 26631935, 42611096, 53263870, 106527740, 213055480]

約数ペア:

[(1, 213055480), (2, 106527740), (4, 53263870), (5, 42611096), (8, 26631935), (10, 21305548), (11, 19368680), (20, 10652774), (22, 9684340), (40, 5326387), (44, 4842170), (55, 3873736), (88, 2421085), (110, 1936868), (220, 968434), (439, 485320), (440, 484217), (878, 242660), (1103, 193160), (1756, 121330), (2195, 97064), (2206, 96580), (3512, 60665), (4390, 48532), (4412, 48290), (4829, 44120), (5515, 38632), (8780, 24266), (8824, 24145), (9658, 22060), (11030, 19316), (12133, 17560)]