81785240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{88897}}^1$

素因数の和:88931

約数の個数: 32

約数和(自身を含む): 192019680

約数和(自身を除く): 110234440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 88897, 177794, 355588, 444485, 711176, 888970, 1777940, 2044631, 3555880, 4089262, 8178524, 10223155, 16357048, 20446310, 40892620, 81785240]

約数ペア:

[(1, 81785240), (2, 40892620), (4, 20446310), (5, 16357048), (8, 10223155), (10, 8178524), (20, 4089262), (23, 3555880), (40, 2044631), (46, 1777940), (92, 888970), (115, 711176), (184, 444485), (230, 355588), (460, 177794), (920, 88897)]