1386996820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{146617}}^1$

素因数の和:146680

約数の個数: 48

約数和(自身を含む): 3251400768

約数和(自身を除く): 1864403948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 146617, 293234, 586468, 733085, 1466170, 1612787, 2932340, 3225574, 6304531, 6451148, 8063935, 12609062, 16127870, 25218124, 31522655, 32255740, 63045310, 69349841, 126090620, 138699682, 277399364, 346749205, 693498410, 1386996820]

約数ペア:

[(1, 1386996820), (2, 693498410), (4, 346749205), (5, 277399364), (10, 138699682), (11, 126090620), (20, 69349841), (22, 63045310), (43, 32255740), (44, 31522655), (55, 25218124), (86, 16127870), (110, 12609062), (172, 8063935), (215, 6451148), (220, 6304531), (430, 3225574), (473, 2932340), (860, 1612787), (946, 1466170), (1892, 733085), (2365, 586468), (4730, 293234), (9460, 146617)]