639961736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{77141}}^1$

素因数の和:77225

約数の個数: 32

約数和(自身を含む): 1291357080

約数和(自身を除く): 651395344

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 122, 136, 244, 488, 1037, 2074, 4148, 8296, 77141, 154282, 308564, 617128, 1311397, 2622794, 4705601, 5245588, 9411202, 10491176, 18822404, 37644808, 79995217, 159990434, 319980868, 639961736]

約数ペア:

[(1, 639961736), (2, 319980868), (4, 159990434), (8, 79995217), (17, 37644808), (34, 18822404), (61, 10491176), (68, 9411202), (122, 5245588), (136, 4705601), (244, 2622794), (488, 1311397), (1037, 617128), (2074, 308564), (4148, 154282), (8296, 77141)]