12981488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{449}}^1$

素因数の和:609

約数の個数: 40

約数和(自身を含む): 27342000

約数和(自身を除く): 14360512

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 139, 208, 278, 449, 556, 898, 1112, 1796, 1807, 2224, 3592, 3614, 5837, 7184, 7228, 11674, 14456, 23348, 28912, 46696, 62411, 93392, 124822, 249644, 499288, 811343, 998576, 1622686, 3245372, 6490744, 12981488]

約数ペア:

[(1, 12981488), (2, 6490744), (4, 3245372), (8, 1622686), (13, 998576), (16, 811343), (26, 499288), (52, 249644), (104, 124822), (139, 93392), (208, 62411), (278, 46696), (449, 28912), (556, 23348), (898, 14456), (1112, 11674), (1796, 7228), (1807, 7184), (2224, 5837), (3592, 3614)]