639841612

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{859}}^1\times {\mathrm{6007}}^1$

素因数の和:6901

約数の個数: 24

約数和(自身を含む): 1157381120

約数和(自身を除く): 517539508

約数列:

[1, 2, 4, 31, 62, 124, 859, 1718, 3436, 6007, 12014, 24028, 26629, 53258, 106516, 186217, 372434, 744868, 5160013, 10320026, 20640052, 159960403, 319920806, 639841612]

約数ペア:

[(1, 639841612), (2, 319920806), (4, 159960403), (31, 20640052), (62, 10320026), (124, 5160013), (859, 744868), (1718, 372434), (3436, 186217), (6007, 106516), (12014, 53258), (24028, 26629)]