81960900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1259}}^1$

素因数の和:1314

約数の個数: 144

約数和(自身を含む): 279982080

約数和(自身を除く): 198021180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 31, 35, 42, 50, 60, 62, 70, 75, 84, 93, 100, 105, 124, 140, 150, 155, 175, 186, 210, 217, 300, 310, 350, 372, 420, 434, 465, 525, 620, 651, 700, 775, 868, 930, 1050, 1085, 1259, 1302, 1550, 1860, 2100, 2170, 2325, 2518, 2604, 3100, 3255, 3777, 4340, 4650, 5036, 5425, 6295, 6510, 7554, 8813, 9300, 10850, 12590, 13020, 15108, 16275, 17626, 18885, 21700, 25180, 26439, 31475, 32550, 35252, 37770, 39029, 44065, 52878, 62950, 65100, 75540, 78058, 88130, 94425, 105756, 117087, 125900, 132195, 156116, 176260, 188850, 195145, 220325, 234174, 264390, 273203, 377700, 390290, 440650, 468348, 528780, 546406, 585435, 660975, 780580, 819609, 881300, 975725, 1092812, 1170870, 1321950, 1366015, 1639218, 1951450, 2341740, 2643900, 2732030, 2927175, 3278436, 3902900, 4098045, 5464060, 5854350, 6830075, 8196090, 11708700, 13660150, 16392180, 20490225, 27320300, 40980450, 81960900]

約数ペア:

[(1, 81960900), (2, 40980450), (3, 27320300), (4, 20490225), (5, 16392180), (6, 13660150), (7, 11708700), (10, 8196090), (12, 6830075), (14, 5854350), (15, 5464060), (20, 4098045), (21, 3902900), (25, 3278436), (28, 2927175), (30, 2732030), (31, 2643900), (35, 2341740), (42, 1951450), (50, 1639218), (60, 1366015), (62, 1321950), (70, 1170870), (75, 1092812), (84, 975725), (93, 881300), (100, 819609), (105, 780580), (124, 660975), (140, 585435), (150, 546406), (155, 528780), (175, 468348), (186, 440650), (210, 390290), (217, 377700), (300, 273203), (310, 264390), (350, 234174), (372, 220325), (420, 195145), (434, 188850), (465, 176260), (525, 156116), (620, 132195), (651, 125900), (700, 117087), (775, 105756), (868, 94425), (930, 88130), (1050, 78058), (1085, 75540), (1259, 65100), (1302, 62950), (1550, 52878), (1860, 44065), (2100, 39029), (2170, 37770), (2325, 35252), (2518, 32550), (2604, 31475), (3100, 26439), (3255, 25180), (3777, 21700), (4340, 18885), (4650, 17626), (5036, 16275), (5425, 15108), (6295, 13020), (6510, 12590), (7554, 10850), (8813, 9300)]