8640786

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 21980160

約数和(自身を除く): 13339374

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 59, 66, 77, 118, 154, 177, 231, 317, 354, 413, 462, 634, 649, 826, 951, 1239, 1298, 1902, 1947, 2219, 2478, 3487, 3894, 4438, 4543, 6657, 6974, 9086, 10461, 13314, 13629, 18703, 20922, 24409, 27258, 37406, 48818, 56109, 73227, 112218, 130921, 146454, 205733, 261842, 392763, 411466, 617199, 785526, 1234398, 1440131, 2880262, 4320393, 8640786]

約数ペア:

[(1, 8640786), (2, 4320393), (3, 2880262), (6, 1440131), (7, 1234398), (11, 785526), (14, 617199), (21, 411466), (22, 392763), (33, 261842), (42, 205733), (59, 146454), (66, 130921), (77, 112218), (118, 73227), (154, 56109), (177, 48818), (231, 37406), (317, 27258), (354, 24409), (413, 20922), (462, 18703), (634, 13629), (649, 13314), (826, 10461), (951, 9086), (1239, 6974), (1298, 6657), (1902, 4543), (1947, 4438), (2219, 3894), (2478, 3487)]