78889340

素因数分解:

$2^2\times 5^1\times {\mathrm{953}}^1\times {\mathrm{4139}}^1$

素因数の和:5101

約数の個数: 24

約数和(自身を含む): 165881520

約数和(自身を除く): 86992180

約数列:

[1, 2, 4, 5, 10, 20, 953, 1906, 3812, 4139, 4765, 8278, 9530, 16556, 19060, 20695, 41390, 82780, 3944467, 7888934, 15777868, 19722335, 39444670, 78889340]

約数ペア:

[(1, 78889340), (2, 39444670), (4, 19722335), (5, 15777868), (10, 7888934), (20, 3944467), (953, 82780), (1906, 41390), (3812, 20695), (4139, 19060), (4765, 16556), (8278, 9530)]