6557840

素因数分解:

$2^4\times 5^1\times {\mathrm{81973}}^1$

素因数の和:81986

約数の個数: 20

約数和(自身を含む): 15247164

約数和(自身を除く): 8689324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 81973, 163946, 327892, 409865, 655784, 819730, 1311568, 1639460, 3278920, 6557840]

約数ペア:

[(1, 6557840), (2, 3278920), (4, 1639460), (5, 1311568), (8, 819730), (10, 655784), (16, 409865), (20, 327892), (40, 163946), (80, 81973)]