621280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 1605744

約数和(自身を除く): 984464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 353, 440, 706, 880, 1412, 1760, 1765, 2824, 3530, 3883, 5648, 7060, 7766, 11296, 14120, 15532, 19415, 28240, 31064, 38830, 56480, 62128, 77660, 124256, 155320, 310640, 621280]

約数ペア:

[(1, 621280), (2, 310640), (4, 155320), (5, 124256), (8, 77660), (10, 62128), (11, 56480), (16, 38830), (20, 31064), (22, 28240), (32, 19415), (40, 15532), (44, 14120), (55, 11296), (80, 7766), (88, 7060), (110, 5648), (160, 3883), (176, 3530), (220, 2824), (352, 1765), (353, 1760), (440, 1412), (706, 880)]