80940808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{2693}}^1$

素因数の和:2746

約数の個数: 48

約数和(自身を含む): 173682180

約数和(自身を除く): 92741372

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 289, 442, 578, 884, 1156, 1768, 2312, 2693, 3757, 5386, 7514, 10772, 15028, 21544, 30056, 35009, 45781, 70018, 91562, 140036, 183124, 280072, 366248, 595153, 778277, 1190306, 1556554, 2380612, 3113108, 4761224, 6226216, 10117601, 20235202, 40470404, 80940808]

約数ペア:

[(1, 80940808), (2, 40470404), (4, 20235202), (8, 10117601), (13, 6226216), (17, 4761224), (26, 3113108), (34, 2380612), (52, 1556554), (68, 1190306), (104, 778277), (136, 595153), (221, 366248), (289, 280072), (442, 183124), (578, 140036), (884, 91562), (1156, 70018), (1768, 45781), (2312, 35009), (2693, 30056), (3757, 21544), (5386, 15028), (7514, 10772)]