491405880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:318

約数の個数: 256

約数和(自身を含む): 1758919680

約数和(自身を除く): 1267513800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 97, 105, 111, 120, 140, 148, 163, 168, 185, 194, 210, 222, 259, 280, 291, 296, 326, 370, 388, 420, 444, 485, 489, 518, 555, 582, 652, 679, 740, 776, 777, 815, 840, 888, 970, 978, 1036, 1110, 1141, 1164, 1295, 1304, 1358, 1455, 1480, 1554, 1630, 1940, 1956, 2037, 2072, 2220, 2282, 2328, 2445, 2590, 2716, 2910, 3108, 3260, 3395, 3423, 3589, 3880, 3885, 3912, 4074, 4440, 4564, 4890, 5180, 5432, 5705, 5820, 6031, 6216, 6520, 6790, 6846, 7178, 7770, 8148, 9128, 9780, 10185, 10360, 10767, 11410, 11640, 12062, 13580, 13692, 14356, 15540, 15811, 16296, 17115, 17945, 18093, 19560, 20370, 21534, 22820, 24124, 25123, 27160, 27384, 28712, 30155, 31080, 31622, 34230, 35890, 36186, 40740, 42217, 43068, 45640, 47433, 48248, 50246, 53835, 60310, 63244, 68460, 71780, 72372, 75369, 79055, 81480, 84434, 86136, 90465, 94866, 100492, 107670, 110677, 120620, 125615, 126488, 126651, 136920, 143560, 144744, 150738, 158110, 168868, 180930, 189732, 200984, 211085, 215340, 221354, 237165, 241240, 251230, 253302, 301476, 316220, 332031, 337736, 361860, 376845, 379464, 422170, 430680, 442708, 474330, 502460, 506604, 553385, 585007, 602952, 632440, 633255, 664062, 723720, 753690, 844340, 885416, 948660, 1004920, 1013208, 1106770, 1170014, 1266510, 1328124, 1507380, 1660155, 1688680, 1755021, 1897320, 2213540, 2340028, 2533020, 2656248, 2925035, 3014760, 3320310, 3510042, 4095049, 4427080, 4680056, 5066040, 5850070, 6640620, 7020084, 8190098, 8775105, 11700140, 12285147, 13281240, 14040168, 16380196, 17550210, 20475245, 23400280, 24570294, 32760392, 35100420, 40950490, 49140588, 61425735, 70200840, 81900980, 98281176, 122851470, 163801960, 245702940, 491405880]

約数ペア:

[(1, 491405880), (2, 245702940), (3, 163801960), (4, 122851470), (5, 98281176), (6, 81900980), (7, 70200840), (8, 61425735), (10, 49140588), (12, 40950490), (14, 35100420), (15, 32760392), (20, 24570294), (21, 23400280), (24, 20475245), (28, 17550210), (30, 16380196), (35, 14040168), (37, 13281240), (40, 12285147), (42, 11700140), (56, 8775105), (60, 8190098), (70, 7020084), (74, 6640620), (84, 5850070), (97, 5066040), (105, 4680056), (111, 4427080), (120, 4095049), (140, 3510042), (148, 3320310), (163, 3014760), (168, 2925035), (185, 2656248), (194, 2533020), (210, 2340028), (222, 2213540), (259, 1897320), (280, 1755021), (291, 1688680), (296, 1660155), (326, 1507380), (370, 1328124), (388, 1266510), (420, 1170014), (444, 1106770), (485, 1013208), (489, 1004920), (518, 948660), (555, 885416), (582, 844340), (652, 753690), (679, 723720), (740, 664062), (776, 633255), (777, 632440), (815, 602952), (840, 585007), (888, 553385), (970, 506604), (978, 502460), (1036, 474330), (1110, 442708), (1141, 430680), (1164, 422170), (1295, 379464), (1304, 376845), (1358, 361860), (1455, 337736), (1480, 332031), (1554, 316220), (1630, 301476), (1940, 253302), (1956, 251230), (2037, 241240), (2072, 237165), (2220, 221354), (2282, 215340), (2328, 211085), (2445, 200984), (2590, 189732), (2716, 180930), (2910, 168868), (3108, 158110), (3260, 150738), (3395, 144744), (3423, 143560), (3589, 136920), (3880, 126651), (3885, 126488), (3912, 125615), (4074, 120620), (4440, 110677), (4564, 107670), (4890, 100492), (5180, 94866), (5432, 90465), (5705, 86136), (5820, 84434), (6031, 81480), (6216, 79055), (6520, 75369), (6790, 72372), (6846, 71780), (7178, 68460), (7770, 63244), (8148, 60310), (9128, 53835), (9780, 50246), (10185, 48248), (10360, 47433), (10767, 45640), (11410, 43068), (11640, 42217), (12062, 40740), (13580, 36186), (13692, 35890), (14356, 34230), (15540, 31622), (15811, 31080), (16296, 30155), (17115, 28712), (17945, 27384), (18093, 27160), (19560, 25123), (20370, 24124), (21534, 22820)]