128278500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:691

約数の個数: 192

約数和(自身を含む): 450078720

約数和(自身を除く): 321800220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 25, 28, 30, 35, 38, 42, 50, 57, 60, 70, 75, 76, 84, 95, 100, 105, 114, 125, 133, 140, 150, 175, 190, 210, 228, 250, 266, 285, 300, 350, 375, 380, 399, 420, 475, 500, 525, 532, 570, 643, 665, 700, 750, 798, 875, 950, 1050, 1140, 1286, 1330, 1425, 1500, 1596, 1750, 1900, 1929, 1995, 2100, 2375, 2572, 2625, 2660, 2850, 3215, 3325, 3500, 3858, 3990, 4501, 4750, 5250, 5700, 6430, 6650, 7125, 7716, 7980, 9002, 9500, 9645, 9975, 10500, 12217, 12860, 13300, 13503, 14250, 16075, 16625, 18004, 19290, 19950, 22505, 24434, 27006, 28500, 32150, 33250, 36651, 38580, 39900, 45010, 48225, 48868, 49875, 54012, 61085, 64300, 66500, 67515, 73302, 80375, 85519, 90020, 96450, 99750, 112525, 122170, 135030, 146604, 160750, 171038, 183255, 192900, 199500, 225050, 241125, 244340, 256557, 270060, 305425, 321500, 337575, 342076, 366510, 427595, 450100, 482250, 513114, 562625, 610850, 675150, 733020, 855190, 916275, 964500, 1026228, 1125250, 1221700, 1282785, 1350300, 1527125, 1687875, 1710380, 1832550, 2137975, 2250500, 2565570, 3054250, 3375750, 3665100, 4275950, 4581375, 5131140, 6108500, 6413925, 6751500, 8551900, 9162750, 10689875, 12827850, 18325500, 21379750, 25655700, 32069625, 42759500, 64139250, 128278500]

約数ペア:

[(1, 128278500), (2, 64139250), (3, 42759500), (4, 32069625), (5, 25655700), (6, 21379750), (7, 18325500), (10, 12827850), (12, 10689875), (14, 9162750), (15, 8551900), (19, 6751500), (20, 6413925), (21, 6108500), (25, 5131140), (28, 4581375), (30, 4275950), (35, 3665100), (38, 3375750), (42, 3054250), (50, 2565570), (57, 2250500), (60, 2137975), (70, 1832550), (75, 1710380), (76, 1687875), (84, 1527125), (95, 1350300), (100, 1282785), (105, 1221700), (114, 1125250), (125, 1026228), (133, 964500), (140, 916275), (150, 855190), (175, 733020), (190, 675150), (210, 610850), (228, 562625), (250, 513114), (266, 482250), (285, 450100), (300, 427595), (350, 366510), (375, 342076), (380, 337575), (399, 321500), (420, 305425), (475, 270060), (500, 256557), (525, 244340), (532, 241125), (570, 225050), (643, 199500), (665, 192900), (700, 183255), (750, 171038), (798, 160750), (875, 146604), (950, 135030), (1050, 122170), (1140, 112525), (1286, 99750), (1330, 96450), (1425, 90020), (1500, 85519), (1596, 80375), (1750, 73302), (1900, 67515), (1929, 66500), (1995, 64300), (2100, 61085), (2375, 54012), (2572, 49875), (2625, 48868), (2660, 48225), (2850, 45010), (3215, 39900), (3325, 38580), (3500, 36651), (3858, 33250), (3990, 32150), (4501, 28500), (4750, 27006), (5250, 24434), (5700, 22505), (6430, 19950), (6650, 19290), (7125, 18004), (7716, 16625), (7980, 16075), (9002, 14250), (9500, 13503), (9645, 13300), (9975, 12860), (10500, 12217)]