72784240

素因数分解:

$2^4\times 5^1\times {\mathrm{909803}}^1$

素因数の和:909816

約数の個数: 20

約数和(自身を含む): 169223544

約数和(自身を除く): 96439304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 909803, 1819606, 3639212, 4549015, 7278424, 9098030, 14556848, 18196060, 36392120, 72784240]

約数ペア:

[(1, 72784240), (2, 36392120), (4, 18196060), (5, 14556848), (8, 9098030), (10, 7278424), (16, 4549015), (20, 3639212), (40, 1819606), (80, 909803)]