4222660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 9702000

約数和(自身を除く): 5479340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 149, 218, 260, 298, 436, 545, 596, 745, 1090, 1417, 1490, 1937, 2180, 2834, 2980, 3874, 5668, 7085, 7748, 9685, 14170, 16241, 19370, 28340, 32482, 38740, 64964, 81205, 162410, 211133, 324820, 422266, 844532, 1055665, 2111330, 4222660]

約数ペア:

[(1, 4222660), (2, 2111330), (4, 1055665), (5, 844532), (10, 422266), (13, 324820), (20, 211133), (26, 162410), (52, 81205), (65, 64964), (109, 38740), (130, 32482), (149, 28340), (218, 19370), (260, 16241), (298, 14170), (436, 9685), (545, 7748), (596, 7085), (745, 5668), (1090, 3874), (1417, 2980), (1490, 2834), (1937, 2180)]