19990370

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{48757}}^1$

素因数の和:48805

約数の個数: 16

約数和(自身を含む): 36861048

約数和(自身を除く): 16870678

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 48757, 97514, 243785, 487570, 1999037, 3998074, 9995185, 19990370]

約数ペア:

[(1, 19990370), (2, 9995185), (5, 3998074), (10, 1999037), (41, 487570), (82, 243785), (205, 97514), (410, 48757)]