2191569100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{447259}}^1$

素因数の和:447287

約数の個数: 54

約数和(自身を含む): 5532158940

約数和(自身を除く): 3340589840

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 447259, 894518, 1789036, 2236295, 3130813, 4472590, 6261626, 8945180, 11181475, 12523252, 15654065, 21915691, 22362950, 31308130, 43831382, 44725900, 62616260, 78270325, 87662764, 109578455, 156540650, 219156910, 313081300, 438313820, 547892275, 1095784550, 2191569100]

約数ペア:

[(1, 2191569100), (2, 1095784550), (4, 547892275), (5, 438313820), (7, 313081300), (10, 219156910), (14, 156540650), (20, 109578455), (25, 87662764), (28, 78270325), (35, 62616260), (49, 44725900), (50, 43831382), (70, 31308130), (98, 22362950), (100, 21915691), (140, 15654065), (175, 12523252), (196, 11181475), (245, 8945180), (350, 6261626), (490, 4472590), (700, 3130813), (980, 2236295), (1225, 1789036), (2450, 894518), (4900, 447259)]