28899940

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3533}}^1$

素因数の和:3951

約数の個数: 24

約数和(自身を含む): 60855480

約数和(自身を除く): 31955540

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 3533, 4090, 7066, 8180, 14132, 17665, 35330, 70660, 1444997, 2889994, 5779988, 7224985, 14449970, 28899940]

約数ペア:

[(1, 28899940), (2, 14449970), (4, 7224985), (5, 5779988), (10, 2889994), (20, 1444997), (409, 70660), (818, 35330), (1636, 17665), (2045, 14132), (3533, 8180), (4090, 7066)]