20949310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 40637376

約数和(自身を除く): 19688066

約数列:

[1, 2, 5, 10, 29, 47, 53, 58, 94, 106, 145, 235, 265, 290, 470, 530, 841, 1363, 1537, 1682, 2491, 2726, 3074, 4205, 4982, 6815, 7685, 8410, 12455, 13630, 15370, 24910, 39527, 44573, 72239, 79054, 89146, 144478, 197635, 222865, 361195, 395270, 445730, 722390, 2094931, 4189862, 10474655, 20949310]

約数ペア:

[(1, 20949310), (2, 10474655), (5, 4189862), (10, 2094931), (29, 722390), (47, 445730), (53, 395270), (58, 361195), (94, 222865), (106, 197635), (145, 144478), (235, 89146), (265, 79054), (290, 72239), (470, 44573), (530, 39527), (841, 24910), (1363, 15370), (1537, 13630), (1682, 12455), (2491, 8410), (2726, 7685), (3074, 6815), (4205, 4982)]