217597744

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{751}}^1$

素因数の和:978

約数の個数: 80

約数和(自身を含む): 522188800

約数和(自身を除く): 304591056

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 199, 208, 364, 398, 728, 751, 796, 1393, 1456, 1502, 1592, 2587, 2786, 3004, 3184, 5174, 5257, 5572, 6008, 9763, 10348, 10514, 11144, 12016, 18109, 19526, 20696, 21028, 22288, 36218, 39052, 41392, 42056, 68341, 72436, 78104, 84112, 136682, 144872, 149449, 156208, 273364, 289744, 298898, 546728, 597796, 1046143, 1093456, 1195592, 1942837, 2092286, 2391184, 3885674, 4184572, 7771348, 8369144, 13599859, 15542696, 16738288, 27199718, 31085392, 54399436, 108798872, 217597744]

約数ペア:

[(1, 217597744), (2, 108798872), (4, 54399436), (7, 31085392), (8, 27199718), (13, 16738288), (14, 15542696), (16, 13599859), (26, 8369144), (28, 7771348), (52, 4184572), (56, 3885674), (91, 2391184), (104, 2092286), (112, 1942837), (182, 1195592), (199, 1093456), (208, 1046143), (364, 597796), (398, 546728), (728, 298898), (751, 289744), (796, 273364), (1393, 156208), (1456, 149449), (1502, 144872), (1592, 136682), (2587, 84112), (2786, 78104), (3004, 72436), (3184, 68341), (5174, 42056), (5257, 41392), (5572, 39052), (6008, 36218), (9763, 22288), (10348, 21028), (10514, 20696), (11144, 19526), (12016, 18109)]