81024840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:261

約数の個数: 256

約数和(自身を含む): 302400000

約数和(自身を除く): 221375160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 29, 30, 36, 39, 40, 45, 52, 54, 58, 60, 65, 72, 78, 87, 90, 104, 108, 116, 117, 120, 130, 135, 145, 156, 174, 180, 195, 199, 216, 232, 234, 260, 261, 270, 290, 312, 348, 351, 360, 377, 390, 398, 435, 468, 520, 522, 540, 580, 585, 597, 696, 702, 754, 780, 783, 796, 870, 936, 995, 1044, 1080, 1131, 1160, 1170, 1194, 1305, 1404, 1508, 1560, 1566, 1592, 1740, 1755, 1791, 1885, 1990, 2088, 2262, 2340, 2388, 2587, 2610, 2808, 2985, 3016, 3132, 3393, 3480, 3510, 3582, 3770, 3915, 3980, 4524, 4680, 4776, 5174, 5220, 5373, 5655, 5771, 5970, 6264, 6786, 7020, 7164, 7540, 7761, 7830, 7960, 8955, 9048, 10179, 10348, 10440, 10746, 11310, 11542, 11940, 12935, 13572, 14040, 14328, 15080, 15522, 15660, 16965, 17313, 17910, 20358, 20696, 21492, 22620, 23084, 23283, 23880, 25870, 26865, 27144, 28855, 31044, 31320, 33930, 34626, 35820, 38805, 40716, 42984, 45240, 46168, 46566, 50895, 51740, 51939, 53730, 57710, 62088, 67860, 69252, 69849, 71640, 75023, 77610, 81432, 86565, 93132, 101790, 103480, 103878, 107460, 115420, 116415, 135720, 138504, 139698, 150046, 155220, 155817, 173130, 186264, 203580, 207756, 214920, 225069, 230840, 232830, 259695, 279396, 300092, 310440, 311634, 346260, 349245, 375115, 407160, 415512, 450138, 465660, 519390, 558792, 600184, 623268, 675207, 692520, 698490, 750230, 779085, 900276, 931320, 1038780, 1125345, 1246536, 1350414, 1396980, 1500460, 1558170, 1800552, 2025621, 2077560, 2250690, 2700828, 2793960, 3000920, 3116340, 3376035, 4051242, 4501380, 5401656, 6232680, 6752070, 8102484, 9002760, 10128105, 13504140, 16204968, 20256210, 27008280, 40512420, 81024840]

約数ペア:

[(1, 81024840), (2, 40512420), (3, 27008280), (4, 20256210), (5, 16204968), (6, 13504140), (8, 10128105), (9, 9002760), (10, 8102484), (12, 6752070), (13, 6232680), (15, 5401656), (18, 4501380), (20, 4051242), (24, 3376035), (26, 3116340), (27, 3000920), (29, 2793960), (30, 2700828), (36, 2250690), (39, 2077560), (40, 2025621), (45, 1800552), (52, 1558170), (54, 1500460), (58, 1396980), (60, 1350414), (65, 1246536), (72, 1125345), (78, 1038780), (87, 931320), (90, 900276), (104, 779085), (108, 750230), (116, 698490), (117, 692520), (120, 675207), (130, 623268), (135, 600184), (145, 558792), (156, 519390), (174, 465660), (180, 450138), (195, 415512), (199, 407160), (216, 375115), (232, 349245), (234, 346260), (260, 311634), (261, 310440), (270, 300092), (290, 279396), (312, 259695), (348, 232830), (351, 230840), (360, 225069), (377, 214920), (390, 207756), (398, 203580), (435, 186264), (468, 173130), (520, 155817), (522, 155220), (540, 150046), (580, 139698), (585, 138504), (597, 135720), (696, 116415), (702, 115420), (754, 107460), (780, 103878), (783, 103480), (796, 101790), (870, 93132), (936, 86565), (995, 81432), (1044, 77610), (1080, 75023), (1131, 71640), (1160, 69849), (1170, 69252), (1194, 67860), (1305, 62088), (1404, 57710), (1508, 53730), (1560, 51939), (1566, 51740), (1592, 50895), (1740, 46566), (1755, 46168), (1791, 45240), (1885, 42984), (1990, 40716), (2088, 38805), (2262, 35820), (2340, 34626), (2388, 33930), (2587, 31320), (2610, 31044), (2808, 28855), (2985, 27144), (3016, 26865), (3132, 25870), (3393, 23880), (3480, 23283), (3510, 23084), (3582, 22620), (3770, 21492), (3915, 20696), (3980, 20358), (4524, 17910), (4680, 17313), (4776, 16965), (5174, 15660), (5220, 15522), (5373, 15080), (5655, 14328), (5771, 14040), (5970, 13572), (6264, 12935), (6786, 11940), (7020, 11542), (7164, 11310), (7540, 10746), (7761, 10440), (7830, 10348), (7960, 10179), (8955, 9048)]