31089520

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:148

約数の個数: 160

約数和(自身を含む): 92851200

約数和(自身を除く): 61761680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 103, 110, 112, 140, 154, 176, 196, 206, 220, 245, 280, 308, 343, 385, 392, 412, 440, 490, 515, 539, 560, 616, 686, 721, 770, 784, 824, 880, 980, 1030, 1078, 1133, 1232, 1372, 1442, 1540, 1648, 1715, 1960, 2060, 2156, 2266, 2695, 2744, 2884, 3080, 3430, 3605, 3773, 3920, 4120, 4312, 4532, 5047, 5390, 5488, 5665, 5768, 6160, 6860, 7210, 7546, 7931, 8240, 8624, 9064, 10094, 10780, 11330, 11536, 13720, 14420, 15092, 15862, 18128, 18865, 20188, 21560, 22660, 25235, 27440, 28840, 30184, 31724, 35329, 37730, 39655, 40376, 43120, 45320, 50470, 55517, 57680, 60368, 63448, 70658, 75460, 79310, 80752, 90640, 100940, 111034, 126896, 141316, 150920, 158620, 176645, 201880, 222068, 277585, 282632, 301840, 317240, 353290, 388619, 403760, 444136, 555170, 565264, 634480, 706580, 777238, 888272, 1110340, 1413160, 1554476, 1943095, 2220680, 2826320, 3108952, 3886190, 4441360, 6217904, 7772380, 15544760, 31089520]

約数ペア:

[(1, 31089520), (2, 15544760), (4, 7772380), (5, 6217904), (7, 4441360), (8, 3886190), (10, 3108952), (11, 2826320), (14, 2220680), (16, 1943095), (20, 1554476), (22, 1413160), (28, 1110340), (35, 888272), (40, 777238), (44, 706580), (49, 634480), (55, 565264), (56, 555170), (70, 444136), (77, 403760), (80, 388619), (88, 353290), (98, 317240), (103, 301840), (110, 282632), (112, 277585), (140, 222068), (154, 201880), (176, 176645), (196, 158620), (206, 150920), (220, 141316), (245, 126896), (280, 111034), (308, 100940), (343, 90640), (385, 80752), (392, 79310), (412, 75460), (440, 70658), (490, 63448), (515, 60368), (539, 57680), (560, 55517), (616, 50470), (686, 45320), (721, 43120), (770, 40376), (784, 39655), (824, 37730), (880, 35329), (980, 31724), (1030, 30184), (1078, 28840), (1133, 27440), (1232, 25235), (1372, 22660), (1442, 21560), (1540, 20188), (1648, 18865), (1715, 18128), (1960, 15862), (2060, 15092), (2156, 14420), (2266, 13720), (2695, 11536), (2744, 11330), (2884, 10780), (3080, 10094), (3430, 9064), (3605, 8624), (3773, 8240), (3920, 7931), (4120, 7546), (4312, 7210), (4532, 6860), (5047, 6160), (5390, 5768), (5488, 5665)]