51541520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14983}}^1$

素因数の和:15039

約数の個数: 40

約数和(自身を含む): 122629056

約数和(自身を除く): 71087536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 14983, 29966, 59932, 74915, 119864, 149830, 239728, 299660, 599320, 644269, 1198640, 1288538, 2577076, 3221345, 5154152, 6442690, 10308304, 12885380, 25770760, 51541520]

約数ペア:

[(1, 51541520), (2, 25770760), (4, 12885380), (5, 10308304), (8, 6442690), (10, 5154152), (16, 3221345), (20, 2577076), (40, 1288538), (43, 1198640), (80, 644269), (86, 599320), (172, 299660), (215, 239728), (344, 149830), (430, 119864), (688, 74915), (860, 59932), (1720, 29966), (3440, 14983)]