639268000

素因数分解:

$2^5\times 5^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 288

約数和(自身を含む): 1931005440

約数和(自身を除く): 1291737440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 32, 34, 35, 40, 50, 56, 68, 70, 79, 80, 85, 100, 112, 119, 125, 136, 140, 158, 160, 170, 175, 200, 224, 238, 250, 272, 280, 289, 316, 340, 350, 395, 400, 425, 476, 500, 544, 553, 560, 578, 595, 632, 680, 700, 790, 800, 850, 875, 952, 1000, 1106, 1120, 1156, 1190, 1264, 1343, 1360, 1400, 1445, 1580, 1700, 1750, 1904, 1975, 2000, 2023, 2125, 2212, 2312, 2380, 2528, 2686, 2720, 2765, 2800, 2890, 2975, 3160, 3400, 3500, 3808, 3950, 4000, 4046, 4250, 4424, 4624, 4760, 5372, 5530, 5600, 5780, 5950, 6320, 6715, 6800, 7000, 7225, 7900, 8092, 8500, 8848, 9248, 9401, 9520, 9875, 10115, 10744, 11060, 11560, 11900, 12640, 13430, 13600, 13825, 14000, 14450, 14875, 15800, 16184, 17000, 17696, 18802, 19040, 19750, 20230, 21488, 22120, 22831, 23120, 23800, 26860, 27650, 28000, 28900, 29750, 31600, 32368, 33575, 34000, 36125, 37604, 39500, 40460, 42976, 44240, 45662, 46240, 47005, 47600, 50575, 53720, 55300, 57800, 59500, 63200, 64736, 67150, 68000, 69125, 72250, 75208, 79000, 80920, 88480, 91324, 94010, 95200, 101150, 107440, 110600, 114155, 115600, 119000, 134300, 138250, 144500, 150416, 158000, 159817, 161840, 167875, 182648, 188020, 202300, 214880, 221200, 228310, 231200, 235025, 238000, 252875, 268600, 276500, 289000, 300832, 316000, 319634, 323680, 335750, 365296, 376040, 404600, 442400, 456620, 470050, 476000, 505750, 537200, 553000, 570775, 578000, 639268, 671500, 730592, 752080, 799085, 809200, 913240, 940100, 1011500, 1074400, 1106000, 1141550, 1156000, 1175125, 1278536, 1343000, 1504160, 1598170, 1618400, 1826480, 1880200, 2023000, 2212000, 2283100, 2350250, 2557072, 2686000, 2853875, 3196340, 3652960, 3760400, 3995425, 4046000, 4566200, 4700500, 5114144, 5372000, 5707750, 6392680, 7520800, 7990850, 8092000, 9132400, 9401000, 11415500, 12785360, 15981700, 18264800, 18802000, 19977125, 22831000, 25570720, 31963400, 37604000, 39954250, 45662000, 63926800, 79908500, 91324000, 127853600, 159817000, 319634000, 639268000]

約数ペア:

[(1, 639268000), (2, 319634000), (4, 159817000), (5, 127853600), (7, 91324000), (8, 79908500), (10, 63926800), (14, 45662000), (16, 39954250), (17, 37604000), (20, 31963400), (25, 25570720), (28, 22831000), (32, 19977125), (34, 18802000), (35, 18264800), (40, 15981700), (50, 12785360), (56, 11415500), (68, 9401000), (70, 9132400), (79, 8092000), (80, 7990850), (85, 7520800), (100, 6392680), (112, 5707750), (119, 5372000), (125, 5114144), (136, 4700500), (140, 4566200), (158, 4046000), (160, 3995425), (170, 3760400), (175, 3652960), (200, 3196340), (224, 2853875), (238, 2686000), (250, 2557072), (272, 2350250), (280, 2283100), (289, 2212000), (316, 2023000), (340, 1880200), (350, 1826480), (395, 1618400), (400, 1598170), (425, 1504160), (476, 1343000), (500, 1278536), (544, 1175125), (553, 1156000), (560, 1141550), (578, 1106000), (595, 1074400), (632, 1011500), (680, 940100), (700, 913240), (790, 809200), (800, 799085), (850, 752080), (875, 730592), (952, 671500), (1000, 639268), (1106, 578000), (1120, 570775), (1156, 553000), (1190, 537200), (1264, 505750), (1343, 476000), (1360, 470050), (1400, 456620), (1445, 442400), (1580, 404600), (1700, 376040), (1750, 365296), (1904, 335750), (1975, 323680), (2000, 319634), (2023, 316000), (2125, 300832), (2212, 289000), (2312, 276500), (2380, 268600), (2528, 252875), (2686, 238000), (2720, 235025), (2765, 231200), (2800, 228310), (2890, 221200), (2975, 214880), (3160, 202300), (3400, 188020), (3500, 182648), (3808, 167875), (3950, 161840), (4000, 159817), (4046, 158000), (4250, 150416), (4424, 144500), (4624, 138250), (4760, 134300), (5372, 119000), (5530, 115600), (5600, 114155), (5780, 110600), (5950, 107440), (6320, 101150), (6715, 95200), (6800, 94010), (7000, 91324), (7225, 88480), (7900, 80920), (8092, 79000), (8500, 75208), (8848, 72250), (9248, 69125), (9401, 68000), (9520, 67150), (9875, 64736), (10115, 63200), (10744, 59500), (11060, 57800), (11560, 55300), (11900, 53720), (12640, 50575), (13430, 47600), (13600, 47005), (13825, 46240), (14000, 45662), (14450, 44240), (14875, 42976), (15800, 40460), (16184, 39500), (17000, 37604), (17696, 36125), (18802, 34000), (19040, 33575), (19750, 32368), (20230, 31600), (21488, 29750), (22120, 28900), (22831, 28000), (23120, 27650), (23800, 26860)]