661796356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 1329877640

約数和(自身を除く): 668081284

約数列:

[1, 2, 4, 13, 26, 29, 37, 52, 58, 74, 116, 148, 377, 409, 481, 754, 818, 841, 962, 1073, 1508, 1636, 1682, 1924, 2146, 3364, 4292, 5317, 10634, 10933, 11861, 13949, 15133, 21268, 21866, 23722, 27898, 30266, 31117, 43732, 47444, 55796, 60532, 62234, 124468, 154193, 196729, 308386, 343969, 393458, 404521, 438857, 616772, 687938, 786916, 809042, 877714, 1375876, 1618084, 1755428, 4471597, 5705141, 8943194, 11410282, 12726853, 17886388, 22820564, 25453706, 50907412, 165449089, 330898178, 661796356]

約数ペア:

[(1, 661796356), (2, 330898178), (4, 165449089), (13, 50907412), (26, 25453706), (29, 22820564), (37, 17886388), (52, 12726853), (58, 11410282), (74, 8943194), (116, 5705141), (148, 4471597), (377, 1755428), (409, 1618084), (481, 1375876), (754, 877714), (818, 809042), (841, 786916), (962, 687938), (1073, 616772), (1508, 438857), (1636, 404521), (1682, 393458), (1924, 343969), (2146, 308386), (3364, 196729), (4292, 154193), (5317, 124468), (10634, 62234), (10933, 60532), (11861, 55796), (13949, 47444), (15133, 43732), (21268, 31117), (21866, 30266), (23722, 27898)]