291237680

素因数分解:

$2^4\times 5^1\times {\mathrm{3640471}}^1$

素因数の和:3640484

約数の個数: 20

約数和(自身を含む): 677127792

約数和(自身を除く): 385890112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640471, 7280942, 14561884, 18202355, 29123768, 36404710, 58247536, 72809420, 145618840, 291237680]

約数ペア:

[(1, 291237680), (2, 145618840), (4, 72809420), (5, 58247536), (8, 36404710), (10, 29123768), (16, 18202355), (20, 14561884), (40, 7280942), (80, 3640471)]