20177839960

素因数分解:

$2^3\times 5^1\times {\mathrm{21529}}^1\times {\mathrm{23431}}^1$

素因数の和:44971

約数の個数: 32

約数和(自身を含む): 45404186400

約数和(自身を除く): 25226346440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21529, 23431, 43058, 46862, 86116, 93724, 107645, 117155, 172232, 187448, 215290, 234310, 430580, 468620, 861160, 937240, 504445999, 1008891998, 2017783996, 2522229995, 4035567992, 5044459990, 10088919980, 20177839960]

約数ペア:

[(1, 20177839960), (2, 10088919980), (4, 5044459990), (5, 4035567992), (8, 2522229995), (10, 2017783996), (20, 1008891998), (40, 504445999), (21529, 937240), (23431, 861160), (43058, 468620), (46862, 430580), (86116, 234310), (93724, 215290), (107645, 187448), (117155, 172232)]