20178382028

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{607}}^1\times {\mathrm{19463}}^1$

素因数の和:20142

約数の個数: 48

約数和(自身を含む): 41088036864

約数和(自身を除く): 20909654836

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 607, 854, 1214, 1708, 2428, 4249, 8498, 16996, 19463, 37027, 38926, 74054, 77852, 136241, 148108, 259189, 272482, 518378, 544964, 1036756, 1187243, 2374486, 4748972, 8310701, 11814041, 16621402, 23628082, 33242804, 47256164, 82698287, 165396574, 330793148, 720656501, 1441313002, 2882626004, 5044595507, 10089191014, 20178382028]

約数ペア:

[(1, 20178382028), (2, 10089191014), (4, 5044595507), (7, 2882626004), (14, 1441313002), (28, 720656501), (61, 330793148), (122, 165396574), (244, 82698287), (427, 47256164), (607, 33242804), (854, 23628082), (1214, 16621402), (1708, 11814041), (2428, 8310701), (4249, 4748972), (8498, 2374486), (16996, 1187243), (19463, 1036756), (37027, 544964), (38926, 518378), (74054, 272482), (77852, 259189), (136241, 148108)]