10902500

素因数分解:

$2^2\times 5^4\times 7^2\times {\mathrm{89}}^1$

素因数の和:127

約数の個数: 90

約数和(自身を含む): 28045710

約数和(自身を除く): 17143210

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 89, 98, 100, 125, 140, 175, 178, 196, 245, 250, 350, 356, 445, 490, 500, 623, 625, 700, 875, 890, 980, 1225, 1246, 1250, 1750, 1780, 2225, 2450, 2492, 2500, 3115, 3500, 4361, 4375, 4450, 4900, 6125, 6230, 8722, 8750, 8900, 11125, 12250, 12460, 15575, 17444, 17500, 21805, 22250, 24500, 30625, 31150, 43610, 44500, 55625, 61250, 62300, 77875, 87220, 109025, 111250, 122500, 155750, 218050, 222500, 311500, 389375, 436100, 545125, 778750, 1090250, 1557500, 2180500, 2725625, 5451250, 10902500]

約数ペア:

[(1, 10902500), (2, 5451250), (4, 2725625), (5, 2180500), (7, 1557500), (10, 1090250), (14, 778750), (20, 545125), (25, 436100), (28, 389375), (35, 311500), (49, 222500), (50, 218050), (70, 155750), (89, 122500), (98, 111250), (100, 109025), (125, 87220), (140, 77875), (175, 62300), (178, 61250), (196, 55625), (245, 44500), (250, 43610), (350, 31150), (356, 30625), (445, 24500), (490, 22250), (500, 21805), (623, 17500), (625, 17444), (700, 15575), (875, 12460), (890, 12250), (980, 11125), (1225, 8900), (1246, 8750), (1250, 8722), (1750, 6230), (1780, 6125), (2225, 4900), (2450, 4450), (2492, 4375), (2500, 4361), (3115, 3500)]