281015000

素因数分解:

$2^3\times 5^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:108

約数の個数: 240

約数和(自身を含む): 811990080

約数和(自身を除く): 530975080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 37, 40, 49, 50, 56, 62, 70, 74, 98, 100, 124, 125, 140, 148, 155, 175, 185, 196, 200, 217, 245, 248, 250, 259, 280, 296, 310, 350, 370, 392, 434, 490, 500, 518, 620, 625, 700, 740, 775, 868, 875, 925, 980, 1000, 1036, 1085, 1147, 1225, 1240, 1250, 1295, 1400, 1480, 1519, 1550, 1736, 1750, 1813, 1850, 1960, 2072, 2170, 2294, 2450, 2500, 2590, 3038, 3100, 3500, 3626, 3700, 3875, 4340, 4375, 4588, 4625, 4900, 5000, 5180, 5425, 5735, 6076, 6125, 6200, 6475, 7000, 7252, 7400, 7595, 7750, 8029, 8680, 8750, 9065, 9176, 9250, 9800, 10360, 10850, 11470, 12152, 12250, 12950, 14504, 15190, 15500, 16058, 17500, 18130, 18500, 19375, 21700, 22940, 23125, 24500, 25900, 27125, 28675, 30380, 30625, 31000, 32116, 32375, 35000, 36260, 37000, 37975, 38750, 40145, 43400, 45325, 45880, 46250, 49000, 51800, 54250, 56203, 57350, 60760, 61250, 64232, 64750, 72520, 75950, 77500, 80290, 90650, 92500, 108500, 112406, 114700, 122500, 129500, 135625, 143375, 151900, 155000, 160580, 161875, 181300, 185000, 189875, 200725, 217000, 224812, 226625, 229400, 245000, 259000, 271250, 281015, 286750, 303800, 321160, 323750, 362600, 379750, 401450, 449624, 453250, 542500, 562030, 573500, 647500, 716875, 759500, 802900, 906500, 949375, 1003625, 1085000, 1124060, 1133125, 1147000, 1295000, 1405075, 1433750, 1519000, 1605800, 1813000, 1898750, 2007250, 2248120, 2266250, 2810150, 2867500, 3797500, 4014500, 4532500, 5018125, 5620300, 5735000, 7025375, 7595000, 8029000, 9065000, 10036250, 11240600, 14050750, 20072500, 28101500, 35126875, 40145000, 56203000, 70253750, 140507500, 281015000]

約数ペア:

[(1, 281015000), (2, 140507500), (4, 70253750), (5, 56203000), (7, 40145000), (8, 35126875), (10, 28101500), (14, 20072500), (20, 14050750), (25, 11240600), (28, 10036250), (31, 9065000), (35, 8029000), (37, 7595000), (40, 7025375), (49, 5735000), (50, 5620300), (56, 5018125), (62, 4532500), (70, 4014500), (74, 3797500), (98, 2867500), (100, 2810150), (124, 2266250), (125, 2248120), (140, 2007250), (148, 1898750), (155, 1813000), (175, 1605800), (185, 1519000), (196, 1433750), (200, 1405075), (217, 1295000), (245, 1147000), (248, 1133125), (250, 1124060), (259, 1085000), (280, 1003625), (296, 949375), (310, 906500), (350, 802900), (370, 759500), (392, 716875), (434, 647500), (490, 573500), (500, 562030), (518, 542500), (620, 453250), (625, 449624), (700, 401450), (740, 379750), (775, 362600), (868, 323750), (875, 321160), (925, 303800), (980, 286750), (1000, 281015), (1036, 271250), (1085, 259000), (1147, 245000), (1225, 229400), (1240, 226625), (1250, 224812), (1295, 217000), (1400, 200725), (1480, 189875), (1519, 185000), (1550, 181300), (1736, 161875), (1750, 160580), (1813, 155000), (1850, 151900), (1960, 143375), (2072, 135625), (2170, 129500), (2294, 122500), (2450, 114700), (2500, 112406), (2590, 108500), (3038, 92500), (3100, 90650), (3500, 80290), (3626, 77500), (3700, 75950), (3875, 72520), (4340, 64750), (4375, 64232), (4588, 61250), (4625, 60760), (4900, 57350), (5000, 56203), (5180, 54250), (5425, 51800), (5735, 49000), (6076, 46250), (6125, 45880), (6200, 45325), (6475, 43400), (7000, 40145), (7252, 38750), (7400, 37975), (7595, 37000), (7750, 36260), (8029, 35000), (8680, 32375), (8750, 32116), (9065, 31000), (9176, 30625), (9250, 30380), (9800, 28675), (10360, 27125), (10850, 25900), (11470, 24500), (12152, 23125), (12250, 22940), (12950, 21700), (14504, 19375), (15190, 18500), (15500, 18130), (16058, 17500)]