81520740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:171

約数の個数: 288

約数和(自身を含む): 308206080

約数和(自身を除く): 226685340

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 29, 30, 35, 36, 42, 45, 46, 58, 60, 63, 69, 70, 84, 87, 90, 92, 97, 105, 115, 116, 126, 138, 140, 145, 161, 174, 180, 194, 203, 207, 210, 230, 252, 261, 276, 290, 291, 315, 322, 345, 348, 388, 406, 414, 420, 435, 460, 483, 485, 522, 580, 582, 609, 630, 644, 667, 679, 690, 805, 812, 828, 870, 873, 966, 970, 1015, 1035, 1044, 1164, 1218, 1260, 1305, 1334, 1358, 1380, 1449, 1455, 1610, 1740, 1746, 1827, 1932, 1940, 2001, 2030, 2037, 2070, 2231, 2415, 2436, 2610, 2668, 2716, 2813, 2898, 2910, 3045, 3220, 3335, 3395, 3492, 3654, 4002, 4060, 4074, 4140, 4365, 4462, 4669, 4830, 5220, 5626, 5796, 5820, 6003, 6090, 6111, 6670, 6693, 6790, 7245, 7308, 8004, 8148, 8439, 8730, 8924, 9135, 9338, 9660, 10005, 10185, 11155, 11252, 12006, 12180, 12222, 13340, 13386, 13580, 14007, 14065, 14490, 15617, 16878, 17460, 18270, 18676, 19691, 20010, 20079, 20370, 22310, 23345, 24012, 24444, 25317, 26772, 28014, 28130, 28980, 30015, 30555, 31234, 33465, 33756, 36540, 39382, 40020, 40158, 40740, 42021, 42195, 44620, 46690, 46851, 50634, 56028, 56260, 59073, 60030, 61110, 62468, 64699, 66930, 70035, 78085, 78764, 80316, 84042, 84390, 93380, 93702, 98455, 100395, 101268, 118146, 120060, 122220, 126585, 129398, 133860, 140070, 140553, 156170, 168084, 168780, 177219, 187404, 194097, 196910, 200790, 210105, 234255, 236292, 253170, 258796, 280140, 281106, 295365, 312340, 323495, 354438, 388194, 393820, 401580, 420210, 452893, 468510, 506340, 562212, 582291, 590730, 646990, 702765, 708876, 776388, 840420, 886095, 905786, 937020, 970485, 1164582, 1181460, 1293980, 1358679, 1405530, 1772190, 1811572, 1940970, 2264465, 2329164, 2717358, 2811060, 2911455, 3544380, 3881940, 4076037, 4528930, 5434716, 5822910, 6793395, 8152074, 9057860, 11645820, 13586790, 16304148, 20380185, 27173580, 40760370, 81520740]

約数ペア:

[(1, 81520740), (2, 40760370), (3, 27173580), (4, 20380185), (5, 16304148), (6, 13586790), (7, 11645820), (9, 9057860), (10, 8152074), (12, 6793395), (14, 5822910), (15, 5434716), (18, 4528930), (20, 4076037), (21, 3881940), (23, 3544380), (28, 2911455), (29, 2811060), (30, 2717358), (35, 2329164), (36, 2264465), (42, 1940970), (45, 1811572), (46, 1772190), (58, 1405530), (60, 1358679), (63, 1293980), (69, 1181460), (70, 1164582), (84, 970485), (87, 937020), (90, 905786), (92, 886095), (97, 840420), (105, 776388), (115, 708876), (116, 702765), (126, 646990), (138, 590730), (140, 582291), (145, 562212), (161, 506340), (174, 468510), (180, 452893), (194, 420210), (203, 401580), (207, 393820), (210, 388194), (230, 354438), (252, 323495), (261, 312340), (276, 295365), (290, 281106), (291, 280140), (315, 258796), (322, 253170), (345, 236292), (348, 234255), (388, 210105), (406, 200790), (414, 196910), (420, 194097), (435, 187404), (460, 177219), (483, 168780), (485, 168084), (522, 156170), (580, 140553), (582, 140070), (609, 133860), (630, 129398), (644, 126585), (667, 122220), (679, 120060), (690, 118146), (805, 101268), (812, 100395), (828, 98455), (870, 93702), (873, 93380), (966, 84390), (970, 84042), (1015, 80316), (1035, 78764), (1044, 78085), (1164, 70035), (1218, 66930), (1260, 64699), (1305, 62468), (1334, 61110), (1358, 60030), (1380, 59073), (1449, 56260), (1455, 56028), (1610, 50634), (1740, 46851), (1746, 46690), (1827, 44620), (1932, 42195), (1940, 42021), (2001, 40740), (2030, 40158), (2037, 40020), (2070, 39382), (2231, 36540), (2415, 33756), (2436, 33465), (2610, 31234), (2668, 30555), (2716, 30015), (2813, 28980), (2898, 28130), (2910, 28014), (3045, 26772), (3220, 25317), (3335, 24444), (3395, 24012), (3492, 23345), (3654, 22310), (4002, 20370), (4060, 20079), (4074, 20010), (4140, 19691), (4365, 18676), (4462, 18270), (4669, 17460), (4830, 16878), (5220, 15617), (5626, 14490), (5796, 14065), (5820, 14007), (6003, 13580), (6090, 13386), (6111, 13340), (6670, 12222), (6693, 12180), (6790, 12006), (7245, 11252), (7308, 11155), (8004, 10185), (8148, 10005), (8439, 9660), (8730, 9338), (8924, 9135)]