128860004

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:625

約数の個数: 72

約数和(自身を含む): 285824448

約数和(自身を除く): 156964444

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 103, 182, 196, 206, 364, 412, 491, 637, 721, 982, 1274, 1339, 1442, 1964, 2548, 2678, 2884, 3437, 5047, 5356, 6383, 6874, 9373, 10094, 12766, 13748, 18746, 20188, 24059, 25532, 37492, 44681, 48118, 50573, 65611, 89362, 96236, 101146, 131222, 178724, 202292, 262444, 312767, 354011, 625534, 657449, 708022, 1251068, 1314898, 1416044, 2478077, 2629796, 4602143, 4956154, 9204286, 9912308, 18408572, 32215001, 64430002, 128860004]

約数ペア:

[(1, 128860004), (2, 64430002), (4, 32215001), (7, 18408572), (13, 9912308), (14, 9204286), (26, 4956154), (28, 4602143), (49, 2629796), (52, 2478077), (91, 1416044), (98, 1314898), (103, 1251068), (182, 708022), (196, 657449), (206, 625534), (364, 354011), (412, 312767), (491, 262444), (637, 202292), (721, 178724), (982, 131222), (1274, 101146), (1339, 96236), (1442, 89362), (1964, 65611), (2548, 50573), (2678, 48118), (2884, 44681), (3437, 37492), (5047, 25532), (5356, 24059), (6383, 20188), (6874, 18746), (9373, 13748), (10094, 12766)]