20484770

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47639}}^1$

素因数の和:47689

約数の個数: 16

約数和(自身を含む): 37730880

約数和(自身を除く): 17246110

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 47639, 95278, 238195, 476390, 2048477, 4096954, 10242385, 20484770]

約数ペア:

[(1, 20484770), (2, 10242385), (5, 4096954), (10, 2048477), (43, 476390), (86, 238195), (215, 95278), (430, 47639)]