86975000

素因数分解:

$2^3\times 5^5\times 7^2\times {\mathrm{71}}^1$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 240453360

約数和(自身を除く): 153478360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 71, 98, 100, 125, 140, 142, 175, 196, 200, 245, 250, 280, 284, 350, 355, 392, 490, 497, 500, 568, 625, 700, 710, 875, 980, 994, 1000, 1225, 1250, 1400, 1420, 1750, 1775, 1960, 1988, 2450, 2485, 2500, 2840, 3125, 3479, 3500, 3550, 3976, 4375, 4900, 4970, 5000, 6125, 6250, 6958, 7000, 7100, 8750, 8875, 9800, 9940, 12250, 12425, 12500, 13916, 14200, 17395, 17500, 17750, 19880, 21875, 24500, 24850, 25000, 27832, 30625, 34790, 35000, 35500, 43750, 44375, 49000, 49700, 61250, 62125, 69580, 71000, 86975, 87500, 88750, 99400, 122500, 124250, 139160, 153125, 173950, 175000, 177500, 221875, 245000, 248500, 306250, 310625, 347900, 355000, 434875, 443750, 497000, 612500, 621250, 695800, 869750, 887500, 1225000, 1242500, 1553125, 1739500, 1775000, 2174375, 2485000, 3106250, 3479000, 4348750, 6212500, 8697500, 10871875, 12425000, 17395000, 21743750, 43487500, 86975000]

約数ペア:

[(1, 86975000), (2, 43487500), (4, 21743750), (5, 17395000), (7, 12425000), (8, 10871875), (10, 8697500), (14, 6212500), (20, 4348750), (25, 3479000), (28, 3106250), (35, 2485000), (40, 2174375), (49, 1775000), (50, 1739500), (56, 1553125), (70, 1242500), (71, 1225000), (98, 887500), (100, 869750), (125, 695800), (140, 621250), (142, 612500), (175, 497000), (196, 443750), (200, 434875), (245, 355000), (250, 347900), (280, 310625), (284, 306250), (350, 248500), (355, 245000), (392, 221875), (490, 177500), (497, 175000), (500, 173950), (568, 153125), (625, 139160), (700, 124250), (710, 122500), (875, 99400), (980, 88750), (994, 87500), (1000, 86975), (1225, 71000), (1250, 69580), (1400, 62125), (1420, 61250), (1750, 49700), (1775, 49000), (1960, 44375), (1988, 43750), (2450, 35500), (2485, 35000), (2500, 34790), (2840, 30625), (3125, 27832), (3479, 25000), (3500, 24850), (3550, 24500), (3976, 21875), (4375, 19880), (4900, 17750), (4970, 17500), (5000, 17395), (6125, 14200), (6250, 13916), (6958, 12500), (7000, 12425), (7100, 12250), (8750, 9940), (8875, 9800)]