81855758

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{71}}^2\times {\mathrm{353}}^1$

素因数の和:520

約数の個数: 24

約数和(自身を含む): 130320144

約数和(自身を除く): 48464386

約数列:

[1, 2, 23, 46, 71, 142, 353, 706, 1633, 3266, 5041, 8119, 10082, 16238, 25063, 50126, 115943, 231886, 576449, 1152898, 1779473, 3558946, 40927879, 81855758]

約数ペア:

[(1, 81855758), (2, 40927879), (23, 3558946), (46, 1779473), (71, 1152898), (142, 576449), (353, 231886), (706, 115943), (1633, 50126), (3266, 25063), (5041, 16238), (8119, 10082)]