19639240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21347}}^1$

素因数の和:21381

約数の個数: 32

約数和(自身を含む): 46111680

約数和(自身を除く): 26472440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21347, 42694, 85388, 106735, 170776, 213470, 426940, 490981, 853880, 981962, 1963924, 2454905, 3927848, 4909810, 9819620, 19639240]

約数ペア:

[(1, 19639240), (2, 9819620), (4, 4909810), (5, 3927848), (8, 2454905), (10, 1963924), (20, 981962), (23, 853880), (40, 490981), (46, 426940), (92, 213470), (115, 170776), (184, 106735), (230, 85388), (460, 42694), (920, 21347)]