18863080

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1153}}^1$

素因数の和:1573

約数の個数: 32

約数和(自身を含む): 42582600

約数和(自身を除く): 23719520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1153, 1636, 2045, 2306, 3272, 4090, 4612, 5765, 8180, 9224, 11530, 16360, 23060, 46120, 471577, 943154, 1886308, 2357885, 3772616, 4715770, 9431540, 18863080]

約数ペア:

[(1, 18863080), (2, 9431540), (4, 4715770), (5, 3772616), (8, 2357885), (10, 1886308), (20, 943154), (40, 471577), (409, 46120), (818, 23060), (1153, 16360), (1636, 11530), (2045, 9224), (2306, 8180), (3272, 5765), (4090, 4612)]