1277788

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:106

約数の個数: 48

約数和(自身を含む): 2661120

約数和(自身を除く): 1383332

約数列:

[1, 2, 4, 17, 19, 23, 34, 38, 43, 46, 68, 76, 86, 92, 172, 323, 391, 437, 646, 731, 782, 817, 874, 989, 1292, 1462, 1564, 1634, 1748, 1978, 2924, 3268, 3956, 7429, 13889, 14858, 16813, 18791, 27778, 29716, 33626, 37582, 55556, 67252, 75164, 319447, 638894, 1277788]

約数ペア:

[(1, 1277788), (2, 638894), (4, 319447), (17, 75164), (19, 67252), (23, 55556), (34, 37582), (38, 33626), (43, 29716), (46, 27778), (68, 18791), (76, 16813), (86, 14858), (92, 13889), (172, 7429), (323, 3956), (391, 3268), (437, 2924), (646, 1978), (731, 1748), (782, 1634), (817, 1564), (874, 1462), (989, 1292)]