68490380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{489217}}^1$

素因数の和:489233

約数の個数: 24

約数和(自身を含む): 164377248

約数和(自身を除く): 95886868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 489217, 978434, 1956868, 2446085, 3424519, 4892170, 6849038, 9784340, 13698076, 17122595, 34245190, 68490380]

約数ペア:

[(1, 68490380), (2, 34245190), (4, 17122595), (5, 13698076), (7, 9784340), (10, 6849038), (14, 4892170), (20, 3424519), (28, 2446085), (35, 1956868), (70, 978434), (140, 489217)]