39991940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{86939}}^1$

素因数の和:86971

約数の個数: 24

約数和(自身を含む): 87635520

約数和(自身を除く): 47643580

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 86939, 173878, 347756, 434695, 869390, 1738780, 1999597, 3999194, 7998388, 9997985, 19995970, 39991940]

約数ペア:

[(1, 39991940), (2, 19995970), (4, 9997985), (5, 7998388), (10, 3999194), (20, 1999597), (23, 1738780), (46, 869390), (92, 434695), (115, 347756), (230, 173878), (460, 86939)]