81307800

素因数分解:

$2^3\times 3^5\times 5^2\times 7^1\times {\mathrm{239}}^1$

素因数の和:277

約数の個数: 288

約数和(自身を含む): 324979200

約数和(自身を除く): 243671400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 27, 28, 30, 35, 36, 40, 42, 45, 50, 54, 56, 60, 63, 70, 72, 75, 81, 84, 90, 100, 105, 108, 120, 126, 135, 140, 150, 162, 168, 175, 180, 189, 200, 210, 216, 225, 239, 243, 252, 270, 280, 300, 315, 324, 350, 360, 378, 405, 420, 450, 478, 486, 504, 525, 540, 567, 600, 630, 648, 675, 700, 717, 756, 810, 840, 900, 945, 956, 972, 1050, 1080, 1134, 1195, 1215, 1260, 1350, 1400, 1434, 1512, 1575, 1620, 1673, 1701, 1800, 1890, 1912, 1944, 2025, 2100, 2151, 2268, 2390, 2430, 2520, 2700, 2835, 2868, 3150, 3240, 3346, 3402, 3585, 3780, 4050, 4200, 4302, 4536, 4725, 4780, 4860, 5019, 5400, 5670, 5736, 5975, 6075, 6300, 6453, 6692, 6804, 7170, 7560, 8100, 8365, 8505, 8604, 9450, 9560, 9720, 10038, 10755, 11340, 11950, 12150, 12600, 12906, 13384, 13608, 14175, 14340, 15057, 16200, 16730, 17010, 17208, 17925, 18900, 19359, 20076, 21510, 22680, 23900, 24300, 25095, 25812, 28350, 28680, 30114, 32265, 33460, 34020, 35850, 37800, 38718, 40152, 41825, 42525, 43020, 45171, 47800, 48600, 50190, 51624, 53775, 56700, 58077, 60228, 64530, 66920, 68040, 71700, 75285, 77436, 83650, 85050, 86040, 90342, 96795, 100380, 107550, 113400, 116154, 120456, 125475, 129060, 135513, 143400, 150570, 154872, 161325, 167300, 170100, 180684, 193590, 200760, 215100, 225855, 232308, 250950, 258120, 271026, 290385, 301140, 322650, 334600, 340200, 361368, 376425, 387180, 406539, 430200, 451710, 464616, 483975, 501900, 542052, 580770, 602280, 645300, 677565, 752850, 774360, 813078, 903420, 967950, 1003800, 1084104, 1129275, 1161540, 1290600, 1355130, 1451925, 1505700, 1626156, 1806840, 1935900, 2032695, 2258550, 2323080, 2710260, 2903850, 3011400, 3252312, 3387825, 3871800, 4065390, 4517100, 5420520, 5807700, 6775650, 8130780, 9034200, 10163475, 11615400, 13551300, 16261560, 20326950, 27102600, 40653900, 81307800]

約数ペア:

[(1, 81307800), (2, 40653900), (3, 27102600), (4, 20326950), (5, 16261560), (6, 13551300), (7, 11615400), (8, 10163475), (9, 9034200), (10, 8130780), (12, 6775650), (14, 5807700), (15, 5420520), (18, 4517100), (20, 4065390), (21, 3871800), (24, 3387825), (25, 3252312), (27, 3011400), (28, 2903850), (30, 2710260), (35, 2323080), (36, 2258550), (40, 2032695), (42, 1935900), (45, 1806840), (50, 1626156), (54, 1505700), (56, 1451925), (60, 1355130), (63, 1290600), (70, 1161540), (72, 1129275), (75, 1084104), (81, 1003800), (84, 967950), (90, 903420), (100, 813078), (105, 774360), (108, 752850), (120, 677565), (126, 645300), (135, 602280), (140, 580770), (150, 542052), (162, 501900), (168, 483975), (175, 464616), (180, 451710), (189, 430200), (200, 406539), (210, 387180), (216, 376425), (225, 361368), (239, 340200), (243, 334600), (252, 322650), (270, 301140), (280, 290385), (300, 271026), (315, 258120), (324, 250950), (350, 232308), (360, 225855), (378, 215100), (405, 200760), (420, 193590), (450, 180684), (478, 170100), (486, 167300), (504, 161325), (525, 154872), (540, 150570), (567, 143400), (600, 135513), (630, 129060), (648, 125475), (675, 120456), (700, 116154), (717, 113400), (756, 107550), (810, 100380), (840, 96795), (900, 90342), (945, 86040), (956, 85050), (972, 83650), (1050, 77436), (1080, 75285), (1134, 71700), (1195, 68040), (1215, 66920), (1260, 64530), (1350, 60228), (1400, 58077), (1434, 56700), (1512, 53775), (1575, 51624), (1620, 50190), (1673, 48600), (1701, 47800), (1800, 45171), (1890, 43020), (1912, 42525), (1944, 41825), (2025, 40152), (2100, 38718), (2151, 37800), (2268, 35850), (2390, 34020), (2430, 33460), (2520, 32265), (2700, 30114), (2835, 28680), (2868, 28350), (3150, 25812), (3240, 25095), (3346, 24300), (3402, 23900), (3585, 22680), (3780, 21510), (4050, 20076), (4200, 19359), (4302, 18900), (4536, 17925), (4725, 17208), (4780, 17010), (4860, 16730), (5019, 16200), (5400, 15057), (5670, 14340), (5736, 14175), (5975, 13608), (6075, 13384), (6300, 12906), (6453, 12600), (6692, 12150), (6804, 11950), (7170, 11340), (7560, 10755), (8100, 10038), (8365, 9720), (8505, 9560), (8604, 9450)]