1389542128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{126047}}^1$

素因数の和:126121

約数の個数: 40

約数和(自身を含む): 2954060928

約数和(自身を除く): 1564518800

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 2756, 5512, 11024, 126047, 252094, 504188, 1008376, 1638611, 2016752, 3277222, 6554444, 6680491, 13108888, 13360982, 26217776, 26721964, 53443928, 86846383, 106887856, 173692766, 347385532, 694771064, 1389542128]

約数ペア:

[(1, 1389542128), (2, 694771064), (4, 347385532), (8, 173692766), (13, 106887856), (16, 86846383), (26, 53443928), (52, 26721964), (53, 26217776), (104, 13360982), (106, 13108888), (208, 6680491), (212, 6554444), (424, 3277222), (689, 2016752), (848, 1638611), (1378, 1008376), (2756, 504188), (5512, 252094), (11024, 126047)]