28939640

素因数分解:

$2^3\times 5^1\times {\mathrm{723491}}^1$

素因数の和:723502

約数の個数: 16

約数和(自身を含む): 65114280

約数和(自身を除く): 36174640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 723491, 1446982, 2893964, 3617455, 5787928, 7234910, 14469820, 28939640]

約数ペア:

[(1, 28939640), (2, 14469820), (4, 7234910), (5, 5787928), (8, 3617455), (10, 2893964), (20, 1446982), (40, 723491)]