81273904

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 173703168

約数和(自身を除く): 92429264

約数列:

[1, 2, 4, 8, 16, 23, 37, 46, 47, 74, 92, 94, 127, 148, 184, 188, 254, 296, 368, 376, 508, 592, 752, 851, 1016, 1081, 1702, 1739, 2032, 2162, 2921, 3404, 3478, 4324, 4699, 5842, 5969, 6808, 6956, 8648, 9398, 11684, 11938, 13616, 13912, 17296, 18796, 23368, 23876, 27824, 37592, 39997, 46736, 47752, 75184, 79994, 95504, 108077, 137287, 159988, 216154, 220853, 274574, 319976, 432308, 441706, 549148, 639952, 864616, 883412, 1098296, 1729232, 1766824, 2196592, 3533648, 5079619, 10159238, 20318476, 40636952, 81273904]

約数ペア:

[(1, 81273904), (2, 40636952), (4, 20318476), (8, 10159238), (16, 5079619), (23, 3533648), (37, 2196592), (46, 1766824), (47, 1729232), (74, 1098296), (92, 883412), (94, 864616), (127, 639952), (148, 549148), (184, 441706), (188, 432308), (254, 319976), (296, 274574), (368, 220853), (376, 216154), (508, 159988), (592, 137287), (752, 108077), (851, 95504), (1016, 79994), (1081, 75184), (1702, 47752), (1739, 46736), (2032, 39997), (2162, 37592), (2921, 27824), (3404, 23876), (3478, 23368), (4324, 18796), (4699, 17296), (5842, 13912), (5969, 13616), (6808, 11938), (6956, 11684), (8648, 9398)]