1999011805

素因数分解:

$5^1\times 7^1\times {\mathrm{2251}}^1\times {\mathrm{25373}}^1$

素因数の和:27636

約数の個数: 16

約数和(自身を含む): 2742827904

約数和(自身を除く): 743816099

約数列:

[1, 5, 7, 35, 2251, 11255, 15757, 25373, 78785, 126865, 177611, 888055, 57114623, 285573115, 399802361, 1999011805]

約数ペア:

[(1, 1999011805), (5, 399802361), (7, 285573115), (35, 57114623), (2251, 888055), (11255, 177611), (15757, 126865), (25373, 78785)]