9419780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 20790000

約数和(自身を除く): 11370220

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 109, 116, 145, 149, 218, 290, 298, 436, 545, 580, 596, 745, 1090, 1490, 2180, 2980, 3161, 4321, 6322, 8642, 12644, 15805, 16241, 17284, 21605, 31610, 32482, 43210, 63220, 64964, 81205, 86420, 162410, 324820, 470989, 941978, 1883956, 2354945, 4709890, 9419780]

約数ペア:

[(1, 9419780), (2, 4709890), (4, 2354945), (5, 1883956), (10, 941978), (20, 470989), (29, 324820), (58, 162410), (109, 86420), (116, 81205), (145, 64964), (149, 63220), (218, 43210), (290, 32482), (298, 31610), (436, 21605), (545, 17284), (580, 16241), (596, 15805), (745, 12644), (1090, 8642), (1490, 6322), (2180, 4321), (2980, 3161)]