2640022

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:137

約数の個数: 48

約数和(自身を含む): 5253120

約数和(自身を除く): 2613098

約数列:

[1, 2, 7, 11, 14, 22, 31, 49, 62, 77, 79, 98, 154, 158, 217, 341, 434, 539, 553, 682, 869, 1078, 1106, 1519, 1738, 2387, 2449, 3038, 3871, 4774, 4898, 6083, 7742, 12166, 16709, 17143, 26939, 33418, 34286, 42581, 53878, 85162, 120001, 188573, 240002, 377146, 1320011, 2640022]

約数ペア:

[(1, 2640022), (2, 1320011), (7, 377146), (11, 240002), (14, 188573), (22, 120001), (31, 85162), (49, 53878), (62, 42581), (77, 34286), (79, 33418), (98, 26939), (154, 17143), (158, 16709), (217, 12166), (341, 7742), (434, 6083), (539, 4898), (553, 4774), (682, 3871), (869, 3038), (1078, 2449), (1106, 2387), (1519, 1738)]