19964920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21701}}^1$

素因数の和:21735

約数の個数: 32

約数和(自身を含む): 46876320

約数和(自身を除く): 26911400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21701, 43402, 86804, 108505, 173608, 217010, 434020, 499123, 868040, 998246, 1996492, 2495615, 3992984, 4991230, 9982460, 19964920]

約数ペア:

[(1, 19964920), (2, 9982460), (4, 4991230), (5, 3992984), (8, 2495615), (10, 1996492), (20, 998246), (23, 868040), (40, 499123), (46, 434020), (92, 217010), (115, 173608), (184, 108505), (230, 86804), (460, 43402), (920, 21701)]