28090868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{739}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 57435840

約数和(自身を除く): 29344972

約数列:

[1, 2, 4, 13, 17, 26, 34, 43, 52, 68, 86, 172, 221, 442, 559, 731, 739, 884, 1118, 1462, 1478, 2236, 2924, 2956, 9503, 9607, 12563, 19006, 19214, 25126, 31777, 38012, 38428, 50252, 63554, 127108, 163319, 326638, 413101, 540209, 653276, 826202, 1080418, 1652404, 2160836, 7022717, 14045434, 28090868]

約数ペア:

[(1, 28090868), (2, 14045434), (4, 7022717), (13, 2160836), (17, 1652404), (26, 1080418), (34, 826202), (43, 653276), (52, 540209), (68, 413101), (86, 326638), (172, 163319), (221, 127108), (442, 63554), (559, 50252), (731, 38428), (739, 38012), (884, 31777), (1118, 25126), (1462, 19214), (1478, 19006), (2236, 12563), (2924, 9607), (2956, 9503)]