1389856

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{257}}^1$

素因数の和:293

約数の個数: 36

約数和(自身を含む): 2974482

約数和(自身を除く): 1584626

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 257, 338, 416, 514, 676, 1028, 1352, 2056, 2704, 3341, 4112, 5408, 6682, 8224, 13364, 26728, 43433, 53456, 86866, 106912, 173732, 347464, 694928, 1389856]

約数ペア:

[(1, 1389856), (2, 694928), (4, 347464), (8, 173732), (13, 106912), (16, 86866), (26, 53456), (32, 43433), (52, 26728), (104, 13364), (169, 8224), (208, 6682), (257, 5408), (338, 4112), (416, 3341), (514, 2704), (676, 2056), (1028, 1352)]