48950000

素因数分解:

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

素因数の和:133

約数の個数: 120

約数和(自身を含む): 130772880

約数和(自身を除く): 81822880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 89, 100, 110, 125, 176, 178, 200, 220, 250, 275, 356, 400, 440, 445, 500, 550, 625, 712, 880, 890, 979, 1000, 1100, 1250, 1375, 1424, 1780, 1958, 2000, 2200, 2225, 2500, 2750, 3125, 3560, 3916, 4400, 4450, 4895, 5000, 5500, 6250, 6875, 7120, 7832, 8900, 9790, 10000, 11000, 11125, 12500, 13750, 15664, 17800, 19580, 22000, 22250, 24475, 25000, 27500, 34375, 35600, 39160, 44500, 48950, 50000, 55000, 55625, 68750, 78320, 89000, 97900, 110000, 111250, 122375, 137500, 178000, 195800, 222500, 244750, 275000, 278125, 391600, 445000, 489500, 550000, 556250, 611875, 890000, 979000, 1112500, 1223750, 1958000, 2225000, 2447500, 3059375, 4450000, 4895000, 6118750, 9790000, 12237500, 24475000, 48950000]

約数ペア:

[(1, 48950000), (2, 24475000), (4, 12237500), (5, 9790000), (8, 6118750), (10, 4895000), (11, 4450000), (16, 3059375), (20, 2447500), (22, 2225000), (25, 1958000), (40, 1223750), (44, 1112500), (50, 979000), (55, 890000), (80, 611875), (88, 556250), (89, 550000), (100, 489500), (110, 445000), (125, 391600), (176, 278125), (178, 275000), (200, 244750), (220, 222500), (250, 195800), (275, 178000), (356, 137500), (400, 122375), (440, 111250), (445, 110000), (500, 97900), (550, 89000), (625, 78320), (712, 68750), (880, 55625), (890, 55000), (979, 50000), (1000, 48950), (1100, 44500), (1250, 39160), (1375, 35600), (1424, 34375), (1780, 27500), (1958, 25000), (2000, 24475), (2200, 22250), (2225, 22000), (2500, 19580), (2750, 17800), (3125, 15664), (3560, 13750), (3916, 12500), (4400, 11125), (4450, 11000), (4895, 10000), (5000, 9790), (5500, 8900), (6250, 7832), (6875, 7120)]