20280575679

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:457

約数の個数: 128

約数和(自身を含む): 35034574848

約数和(自身を除く): 14753999169

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 101, 103, 111, 193, 259, 273, 303, 309, 481, 579, 707, 721, 777, 1313, 1339, 1351, 1443, 2121, 2163, 2509, 3367, 3737, 3811, 3939, 4017, 4053, 7141, 7527, 9191, 9373, 10101, 10403, 11211, 11433, 17563, 19493, 19879, 21423, 26159, 26677, 27573, 28119, 31209, 48581, 49543, 49987, 52689, 58479, 59637, 72821, 78477, 80031, 92833, 135239, 136451, 139153, 145743, 148629, 149961, 218463, 253409, 258427, 278499, 340067, 346801, 384911, 405717, 409353, 417459, 649831, 721241, 735523, 760227, 775281, 946673, 1020201, 1040403, 1154733, 1773863, 1808989, 1949493, 2007779, 2163723, 2206569, 2694377, 2840019, 5003843, 5048687, 5148661, 5321589, 5426967, 6023337, 8083131, 9376133, 9561799, 14054453, 15011529, 15146061, 15445983, 26101127, 28128399, 28685397, 35026901, 42163359, 65632931, 66932593, 74287823, 78303381, 105080703, 182707889, 196898793, 200797779, 222863469, 520014761, 548123667, 965741699, 1560044283, 2897225097, 6760191893, 20280575679]

約数ペア:

[(1, 20280575679), (3, 6760191893), (7, 2897225097), (13, 1560044283), (21, 965741699), (37, 548123667), (39, 520014761), (91, 222863469), (101, 200797779), (103, 196898793), (111, 182707889), (193, 105080703), (259, 78303381), (273, 74287823), (303, 66932593), (309, 65632931), (481, 42163359), (579, 35026901), (707, 28685397), (721, 28128399), (777, 26101127), (1313, 15445983), (1339, 15146061), (1351, 15011529), (1443, 14054453), (2121, 9561799), (2163, 9376133), (2509, 8083131), (3367, 6023337), (3737, 5426967), (3811, 5321589), (3939, 5148661), (4017, 5048687), (4053, 5003843), (7141, 2840019), (7527, 2694377), (9191, 2206569), (9373, 2163723), (10101, 2007779), (10403, 1949493), (11211, 1808989), (11433, 1773863), (17563, 1154733), (19493, 1040403), (19879, 1020201), (21423, 946673), (26159, 775281), (26677, 760227), (27573, 735523), (28119, 721241), (31209, 649831), (48581, 417459), (49543, 409353), (49987, 405717), (52689, 384911), (58479, 346801), (59637, 340067), (72821, 278499), (78477, 258427), (80031, 253409), (92833, 218463), (135239, 149961), (136451, 148629), (139153, 145743)]