78612940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{561521}}^1$

素因数の和:561537

約数の個数: 24

約数和(自身を含む): 188671392

約数和(自身を除く): 110058452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 561521, 1123042, 2246084, 2807605, 3930647, 5615210, 7861294, 11230420, 15722588, 19653235, 39306470, 78612940]

約数ペア:

[(1, 78612940), (2, 39306470), (4, 19653235), (5, 15722588), (7, 11230420), (10, 7861294), (14, 5615210), (20, 3930647), (28, 2807605), (35, 2246084), (70, 1123042), (140, 561521)]