20377994

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 20264566

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 71, 83, 91, 133, 142, 166, 182, 247, 266, 494, 497, 581, 923, 994, 1079, 1162, 1349, 1577, 1729, 1846, 2158, 2698, 3154, 3458, 5893, 6461, 7553, 9443, 11039, 11786, 12922, 15106, 17537, 18886, 20501, 22078, 35074, 41002, 41251, 76609, 82502, 111967, 122759, 143507, 153218, 223934, 245518, 287014, 536263, 783769, 1072526, 1455571, 1567538, 2911142, 10188997, 20377994]

約数ペア:

[(1, 20377994), (2, 10188997), (7, 2911142), (13, 1567538), (14, 1455571), (19, 1072526), (26, 783769), (38, 536263), (71, 287014), (83, 245518), (91, 223934), (133, 153218), (142, 143507), (166, 122759), (182, 111967), (247, 82502), (266, 76609), (494, 41251), (497, 41002), (581, 35074), (923, 22078), (994, 20501), (1079, 18886), (1162, 17537), (1349, 15106), (1577, 12922), (1729, 11786), (1846, 11039), (2158, 9443), (2698, 7553), (3154, 6461), (3458, 5893)]