38937500

素因数分解:

$2^2\times 5^6\times 7^1\times {\mathrm{89}}^1$

素因数の和:130

約数の個数: 84

約数和(自身を含む): 98436240

約数和(自身を除く): 59498740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 89, 100, 125, 140, 175, 178, 250, 350, 356, 445, 500, 623, 625, 700, 875, 890, 1246, 1250, 1750, 1780, 2225, 2492, 2500, 3115, 3125, 3500, 4375, 4450, 6230, 6250, 8750, 8900, 11125, 12460, 12500, 15575, 15625, 17500, 21875, 22250, 31150, 31250, 43750, 44500, 55625, 62300, 62500, 77875, 87500, 109375, 111250, 155750, 218750, 222500, 278125, 311500, 389375, 437500, 556250, 778750, 1112500, 1390625, 1557500, 1946875, 2781250, 3893750, 5562500, 7787500, 9734375, 19468750, 38937500]

約数ペア:

[(1, 38937500), (2, 19468750), (4, 9734375), (5, 7787500), (7, 5562500), (10, 3893750), (14, 2781250), (20, 1946875), (25, 1557500), (28, 1390625), (35, 1112500), (50, 778750), (70, 556250), (89, 437500), (100, 389375), (125, 311500), (140, 278125), (175, 222500), (178, 218750), (250, 155750), (350, 111250), (356, 109375), (445, 87500), (500, 77875), (623, 62500), (625, 62300), (700, 55625), (875, 44500), (890, 43750), (1246, 31250), (1250, 31150), (1750, 22250), (1780, 21875), (2225, 17500), (2492, 15625), (2500, 15575), (3115, 12500), (3125, 12460), (3500, 11125), (4375, 8900), (4450, 8750), (6230, 6250)]