51175000

素因数分解:

$2^3\times 5^5\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 126554400

約数和(自身を除く): 75379400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 89, 92, 100, 115, 125, 178, 184, 200, 230, 250, 356, 445, 460, 500, 575, 625, 712, 890, 920, 1000, 1150, 1250, 1780, 2047, 2225, 2300, 2500, 2875, 3125, 3560, 4094, 4450, 4600, 5000, 5750, 6250, 8188, 8900, 10235, 11125, 11500, 12500, 14375, 16376, 17800, 20470, 22250, 23000, 25000, 28750, 40940, 44500, 51175, 55625, 57500, 71875, 81880, 89000, 102350, 111250, 115000, 143750, 204700, 222500, 255875, 278125, 287500, 409400, 445000, 511750, 556250, 575000, 1023500, 1112500, 1279375, 2047000, 2225000, 2558750, 5117500, 6396875, 10235000, 12793750, 25587500, 51175000]

約数ペア:

[(1, 51175000), (2, 25587500), (4, 12793750), (5, 10235000), (8, 6396875), (10, 5117500), (20, 2558750), (23, 2225000), (25, 2047000), (40, 1279375), (46, 1112500), (50, 1023500), (89, 575000), (92, 556250), (100, 511750), (115, 445000), (125, 409400), (178, 287500), (184, 278125), (200, 255875), (230, 222500), (250, 204700), (356, 143750), (445, 115000), (460, 111250), (500, 102350), (575, 89000), (625, 81880), (712, 71875), (890, 57500), (920, 55625), (1000, 51175), (1150, 44500), (1250, 40940), (1780, 28750), (2047, 25000), (2225, 23000), (2300, 22250), (2500, 20470), (2875, 17800), (3125, 16376), (3560, 14375), (4094, 12500), (4450, 11500), (4600, 11125), (5000, 10235), (5750, 8900), (6250, 8188)]