8401990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{44221}}^1$

素因数の和:44247

約数の個数: 16

約数和(自身を含む): 15919920

約数和(自身を除く): 7517930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 44221, 88442, 221105, 442210, 840199, 1680398, 4200995, 8401990]

約数ペア:

[(1, 8401990), (2, 4200995), (5, 1680398), (10, 840199), (19, 442210), (38, 221105), (95, 88442), (190, 44221)]