12730280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 30799440

約数和(自身を除く): 18069160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 97, 136, 170, 193, 194, 340, 386, 388, 485, 680, 772, 776, 965, 970, 1544, 1649, 1930, 1940, 3281, 3298, 3860, 3880, 6562, 6596, 7720, 8245, 13124, 13192, 16405, 16490, 18721, 26248, 32810, 32980, 37442, 65620, 65960, 74884, 93605, 131240, 149768, 187210, 318257, 374420, 636514, 748840, 1273028, 1591285, 2546056, 3182570, 6365140, 12730280]

約数ペア:

[(1, 12730280), (2, 6365140), (4, 3182570), (5, 2546056), (8, 1591285), (10, 1273028), (17, 748840), (20, 636514), (34, 374420), (40, 318257), (68, 187210), (85, 149768), (97, 131240), (136, 93605), (170, 74884), (193, 65960), (194, 65620), (340, 37442), (386, 32980), (388, 32810), (485, 26248), (680, 18721), (772, 16490), (776, 16405), (965, 13192), (970, 13124), (1544, 8245), (1649, 7720), (1930, 6596), (1940, 6562), (3281, 3880), (3298, 3860)]