1561696640

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2621}}^1$

素因数の和:2673

約数の個数: 192

約数和(自身を含む): 4573292400

約数和(自身を除く): 3011595760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 70, 76, 80, 95, 98, 112, 128, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 320, 380, 392, 448, 490, 532, 560, 608, 640, 665, 760, 784, 896, 931, 980, 1064, 1120, 1216, 1330, 1520, 1568, 1862, 1960, 2128, 2240, 2432, 2621, 2660, 3040, 3136, 3724, 3920, 4256, 4480, 4655, 5242, 5320, 6080, 6272, 7448, 7840, 8512, 9310, 10484, 10640, 12160, 13105, 14896, 15680, 17024, 18347, 18620, 20968, 21280, 26210, 29792, 31360, 36694, 37240, 41936, 42560, 49799, 52420, 59584, 73388, 74480, 83872, 85120, 91735, 99598, 104840, 119168, 128429, 146776, 148960, 167744, 183470, 199196, 209680, 248995, 256858, 293552, 297920, 335488, 348593, 366940, 398392, 419360, 497990, 513716, 587104, 595840, 642145, 697186, 733880, 796784, 838720, 995980, 1027432, 1174208, 1284290, 1394372, 1467760, 1593568, 1677440, 1742965, 1991960, 2054864, 2348416, 2440151, 2568580, 2788744, 2935520, 3187136, 3485930, 3983920, 4109728, 4880302, 5137160, 5577488, 5871040, 6374272, 6971860, 7967840, 8219456, 9760604, 10274320, 11154976, 11742080, 12200755, 13943720, 15935680, 16438912, 19521208, 20548640, 22309952, 24401510, 27887440, 31871360, 39042416, 41097280, 44619904, 48803020, 55774880, 78084832, 82194560, 97606040, 111549760, 156169664, 195212080, 223099520, 312339328, 390424160, 780848320, 1561696640]

約数ペア:

[(1, 1561696640), (2, 780848320), (4, 390424160), (5, 312339328), (7, 223099520), (8, 195212080), (10, 156169664), (14, 111549760), (16, 97606040), (19, 82194560), (20, 78084832), (28, 55774880), (32, 48803020), (35, 44619904), (38, 41097280), (40, 39042416), (49, 31871360), (56, 27887440), (64, 24401510), (70, 22309952), (76, 20548640), (80, 19521208), (95, 16438912), (98, 15935680), (112, 13943720), (128, 12200755), (133, 11742080), (140, 11154976), (152, 10274320), (160, 9760604), (190, 8219456), (196, 7967840), (224, 6971860), (245, 6374272), (266, 5871040), (280, 5577488), (304, 5137160), (320, 4880302), (380, 4109728), (392, 3983920), (448, 3485930), (490, 3187136), (532, 2935520), (560, 2788744), (608, 2568580), (640, 2440151), (665, 2348416), (760, 2054864), (784, 1991960), (896, 1742965), (931, 1677440), (980, 1593568), (1064, 1467760), (1120, 1394372), (1216, 1284290), (1330, 1174208), (1520, 1027432), (1568, 995980), (1862, 838720), (1960, 796784), (2128, 733880), (2240, 697186), (2432, 642145), (2621, 595840), (2660, 587104), (3040, 513716), (3136, 497990), (3724, 419360), (3920, 398392), (4256, 366940), (4480, 348593), (4655, 335488), (5242, 297920), (5320, 293552), (6080, 256858), (6272, 248995), (7448, 209680), (7840, 199196), (8512, 183470), (9310, 167744), (10484, 148960), (10640, 146776), (12160, 128429), (13105, 119168), (14896, 104840), (15680, 99598), (17024, 91735), (18347, 85120), (18620, 83872), (20968, 74480), (21280, 73388), (26210, 59584), (29792, 52420), (31360, 49799), (36694, 42560), (37240, 41936)]