198183560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{115223}}^1$

素因数の和:115277

約数の個数: 32

約数和(自身を含む): 456287040

約数和(自身を除く): 258103480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 115223, 230446, 460892, 576115, 921784, 1152230, 2304460, 4608920, 4954589, 9909178, 19818356, 24772945, 39636712, 49545890, 99091780, 198183560]

約数ペア:

[(1, 198183560), (2, 99091780), (4, 49545890), (5, 39636712), (8, 24772945), (10, 19818356), (20, 9909178), (40, 4954589), (43, 4608920), (86, 2304460), (172, 1152230), (215, 921784), (344, 576115), (430, 460892), (860, 230446), (1720, 115223)]