18820256

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:334

約数の個数: 96

約数和(自身を含む): 47755008

約数和(自身を除く): 28934752

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 32, 46, 52, 56, 91, 92, 104, 112, 161, 182, 184, 208, 224, 281, 299, 322, 364, 368, 416, 562, 598, 644, 728, 736, 1124, 1196, 1288, 1456, 1967, 2093, 2248, 2392, 2576, 2912, 3653, 3934, 4186, 4496, 4784, 5152, 6463, 7306, 7868, 8372, 8992, 9568, 12926, 14612, 15736, 16744, 25571, 25852, 29224, 31472, 33488, 45241, 51142, 51704, 58448, 62944, 66976, 84019, 90482, 102284, 103408, 116896, 168038, 180964, 204568, 206816, 336076, 361928, 409136, 588133, 672152, 723856, 818272, 1176266, 1344304, 1447712, 2352532, 2688608, 4705064, 9410128, 18820256]

約数ペア:

[(1, 18820256), (2, 9410128), (4, 4705064), (7, 2688608), (8, 2352532), (13, 1447712), (14, 1344304), (16, 1176266), (23, 818272), (26, 723856), (28, 672152), (32, 588133), (46, 409136), (52, 361928), (56, 336076), (91, 206816), (92, 204568), (104, 180964), (112, 168038), (161, 116896), (182, 103408), (184, 102284), (208, 90482), (224, 84019), (281, 66976), (299, 62944), (322, 58448), (364, 51704), (368, 51142), (416, 45241), (562, 33488), (598, 31472), (644, 29224), (728, 25852), (736, 25571), (1124, 16744), (1196, 15736), (1288, 14612), (1456, 12926), (1967, 9568), (2093, 8992), (2248, 8372), (2392, 7868), (2576, 7306), (2912, 6463), (3653, 5152), (3934, 4784), (4186, 4496)]