131465240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{142897}}^1$

素因数の和:142931

約数の個数: 32

約数和(自身を含む): 308659680

約数和(自身を除く): 177194440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 142897, 285794, 571588, 714485, 1143176, 1428970, 2857940, 3286631, 5715880, 6573262, 13146524, 16433155, 26293048, 32866310, 65732620, 131465240]

約数ペア:

[(1, 131465240), (2, 65732620), (4, 32866310), (5, 26293048), (8, 16433155), (10, 13146524), (20, 6573262), (23, 5715880), (40, 3286631), (46, 2857940), (92, 1428970), (115, 1143176), (184, 714485), (230, 571588), (460, 285794), (920, 142897)]