12967760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 33445776

約数和(自身を除く): 20478016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 208, 260, 296, 337, 370, 481, 520, 592, 674, 740, 962, 1040, 1348, 1480, 1685, 1924, 2405, 2696, 2960, 3370, 3848, 4381, 4810, 5392, 6740, 7696, 8762, 9620, 12469, 13480, 17524, 19240, 21905, 24938, 26960, 35048, 38480, 43810, 49876, 62345, 70096, 87620, 99752, 124690, 162097, 175240, 199504, 249380, 324194, 350480, 498760, 648388, 810485, 997520, 1296776, 1620970, 2593552, 3241940, 6483880, 12967760]

約数ペア:

[(1, 12967760), (2, 6483880), (4, 3241940), (5, 2593552), (8, 1620970), (10, 1296776), (13, 997520), (16, 810485), (20, 648388), (26, 498760), (37, 350480), (40, 324194), (52, 249380), (65, 199504), (74, 175240), (80, 162097), (104, 124690), (130, 99752), (148, 87620), (185, 70096), (208, 62345), (260, 49876), (296, 43810), (337, 38480), (370, 35048), (481, 26960), (520, 24938), (592, 21905), (674, 19240), (740, 17524), (962, 13480), (1040, 12469), (1348, 9620), (1480, 8762), (1685, 7696), (1924, 6740), (2405, 5392), (2696, 4810), (2960, 4381), (3370, 3848)]