128423512

素因数分解:

$2^3\times 7^2\times {\mathrm{197}}^1\times {\mathrm{1663}}^1$

素因数の和:1880

約数の個数: 48

約数和(自身を含む): 281698560

約数和(自身を除く): 153275048

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 197, 392, 394, 788, 1379, 1576, 1663, 2758, 3326, 5516, 6652, 9653, 11032, 11641, 13304, 19306, 23282, 38612, 46564, 77224, 81487, 93128, 162974, 325948, 327611, 651896, 655222, 1310444, 2293277, 2620888, 4586554, 9173108, 16052939, 18346216, 32105878, 64211756, 128423512]

約数ペア:

[(1, 128423512), (2, 64211756), (4, 32105878), (7, 18346216), (8, 16052939), (14, 9173108), (28, 4586554), (49, 2620888), (56, 2293277), (98, 1310444), (196, 655222), (197, 651896), (392, 327611), (394, 325948), (788, 162974), (1379, 93128), (1576, 81487), (1663, 77224), (2758, 46564), (3326, 38612), (5516, 23282), (6652, 19306), (9653, 13304), (11032, 11641)]