51225040

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14891}}^1$

素因数の和:14947

約数の個数: 40

約数和(自身を含む): 121876128

約数和(自身を除く): 70651088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 14891, 29782, 59564, 74455, 119128, 148910, 238256, 297820, 595640, 640313, 1191280, 1280626, 2561252, 3201565, 5122504, 6403130, 10245008, 12806260, 25612520, 51225040]

約数ペア:

[(1, 51225040), (2, 25612520), (4, 12806260), (5, 10245008), (8, 6403130), (10, 5122504), (16, 3201565), (20, 2561252), (40, 1280626), (43, 1191280), (80, 640313), (86, 595640), (172, 297820), (215, 238256), (344, 148910), (430, 119128), (688, 74455), (860, 59564), (1720, 29782), (3440, 14891)]