145215920

素因数分解:

$2^4\times 5^1\times {\mathrm{1815199}}^1$

素因数の和:1815212

約数の個数: 20

約数和(自身を含む): 337627200

約数和(自身を除く): 192411280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1815199, 3630398, 7260796, 9075995, 14521592, 18151990, 29043184, 36303980, 72607960, 145215920]

約数ペア:

[(1, 145215920), (2, 72607960), (4, 36303980), (5, 29043184), (8, 18151990), (10, 14521592), (16, 9075995), (20, 7260796), (40, 3630398), (80, 1815199)]