281450078

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:649

約数の個数: 64

約数和(自身を含む): 551040000

約数和(自身を除く): 269589922

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 199, 247, 266, 398, 409, 494, 818, 1393, 1729, 2587, 2786, 2863, 3458, 3781, 5174, 5317, 5726, 7562, 7771, 10634, 15542, 18109, 26467, 36218, 37219, 49153, 52934, 54397, 74438, 81391, 98306, 101023, 108794, 162782, 202046, 344071, 569737, 688142, 707161, 1058083, 1139474, 1414322, 1546429, 2116166, 3092858, 7406581, 10825003, 14813162, 20103577, 21650006, 40207154, 140725039, 281450078]

約数ペア:

[(1, 281450078), (2, 140725039), (7, 40207154), (13, 21650006), (14, 20103577), (19, 14813162), (26, 10825003), (38, 7406581), (91, 3092858), (133, 2116166), (182, 1546429), (199, 1414322), (247, 1139474), (266, 1058083), (398, 707161), (409, 688142), (494, 569737), (818, 344071), (1393, 202046), (1729, 162782), (2587, 108794), (2786, 101023), (2863, 98306), (3458, 81391), (3781, 74438), (5174, 54397), (5317, 52934), (5726, 49153), (7562, 37219), (7771, 36218), (10634, 26467), (15542, 18109)]