139914640

素因数分解:

$2^4\times 5^1\times {\mathrm{1748933}}^1$

素因数の和:1748946

約数の個数: 20

約数和(自身を含む): 325301724

約数和(自身を除く): 185387084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1748933, 3497866, 6995732, 8744665, 13991464, 17489330, 27982928, 34978660, 69957320, 139914640]

約数ペア:

[(1, 139914640), (2, 69957320), (4, 34978660), (5, 27982928), (8, 17489330), (10, 13991464), (16, 8744665), (20, 6995732), (40, 3497866), (80, 1748933)]