18290464

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{449}}^1$

素因数の和:545

約数の個数: 48

約数和(自身を含む): 38556000

約数和(自身を除く): 20265536

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 67, 76, 134, 152, 268, 304, 449, 536, 608, 898, 1072, 1273, 1796, 2144, 2546, 3592, 5092, 7184, 8531, 10184, 14368, 17062, 20368, 30083, 34124, 40736, 60166, 68248, 120332, 136496, 240664, 272992, 481328, 571577, 962656, 1143154, 2286308, 4572616, 9145232, 18290464]

約数ペア:

[(1, 18290464), (2, 9145232), (4, 4572616), (8, 2286308), (16, 1143154), (19, 962656), (32, 571577), (38, 481328), (67, 272992), (76, 240664), (134, 136496), (152, 120332), (268, 68248), (304, 60166), (449, 40736), (536, 34124), (608, 30083), (898, 20368), (1072, 17062), (1273, 14368), (1796, 10184), (2144, 8531), (2546, 7184), (3592, 5092)]