20020784

素因数分解:

$2^4\times 7^1\times {\mathrm{178757}}^1$

素因数の和:178772

約数の個数: 20

約数和(自身を含む): 44331984

約数和(自身を除く): 24311200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178757, 357514, 715028, 1251299, 1430056, 2502598, 2860112, 5005196, 10010392, 20020784]

約数ペア:

[(1, 20020784), (2, 10010392), (4, 5005196), (7, 2860112), (8, 2502598), (14, 1430056), (16, 1251299), (28, 715028), (56, 357514), (112, 178757)]