642138626

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{122219}}^1$

素因数の和:122329

約数の個数: 16

約数和(自身を含む): 1003181760

約数和(自身を除く): 361043134

約数列:

[1, 2, 37, 71, 74, 142, 2627, 5254, 122219, 244438, 4522103, 8677549, 9044206, 17355098, 321069313, 642138626]

約数ペア:

[(1, 642138626), (2, 321069313), (37, 17355098), (71, 9044206), (74, 8677549), (142, 4522103), (2627, 244438), (5254, 122219)]