4895000

素因数分解:

$2^3\times 5^4\times {\mathrm{11}}^1\times {\mathrm{89}}^1$

素因数の和:126

約数の個数: 80

約数和(自身を含む): 12652200

約数和(自身を除く): 7757200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 89, 100, 110, 125, 178, 200, 220, 250, 275, 356, 440, 445, 500, 550, 625, 712, 890, 979, 1000, 1100, 1250, 1375, 1780, 1958, 2200, 2225, 2500, 2750, 3560, 3916, 4450, 4895, 5000, 5500, 6875, 7832, 8900, 9790, 11000, 11125, 13750, 17800, 19580, 22250, 24475, 27500, 39160, 44500, 48950, 55000, 55625, 89000, 97900, 111250, 122375, 195800, 222500, 244750, 445000, 489500, 611875, 979000, 1223750, 2447500, 4895000]

約数ペア:

[(1, 4895000), (2, 2447500), (4, 1223750), (5, 979000), (8, 611875), (10, 489500), (11, 445000), (20, 244750), (22, 222500), (25, 195800), (40, 122375), (44, 111250), (50, 97900), (55, 89000), (88, 55625), (89, 55000), (100, 48950), (110, 44500), (125, 39160), (178, 27500), (200, 24475), (220, 22250), (250, 19580), (275, 17800), (356, 13750), (440, 11125), (445, 11000), (500, 9790), (550, 8900), (625, 7832), (712, 6875), (890, 5500), (979, 5000), (1000, 4895), (1100, 4450), (1250, 3916), (1375, 3560), (1780, 2750), (1958, 2500), (2200, 2225)]