28221380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3467}}^1$

素因数の和:3524

約数の個数: 48

約数和(自身を含む): 66419136

約数和(自身を除く): 38197756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 3467, 4070, 6934, 8140, 13868, 17335, 34670, 38137, 69340, 76274, 128279, 152548, 190685, 256558, 381370, 513116, 641395, 762740, 1282790, 1411069, 2565580, 2822138, 5644276, 7055345, 14110690, 28221380]

約数ペア:

[(1, 28221380), (2, 14110690), (4, 7055345), (5, 5644276), (10, 2822138), (11, 2565580), (20, 1411069), (22, 1282790), (37, 762740), (44, 641395), (55, 513116), (74, 381370), (110, 256558), (148, 190685), (185, 152548), (220, 128279), (370, 76274), (407, 69340), (740, 38137), (814, 34670), (1628, 17335), (2035, 13868), (3467, 8140), (4070, 6934)]