639560828

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{22303}}^1$

素因数の和:22481

約数の個数: 24

約数和(自身を含む): 1146604032

約数和(自身を除く): 507043204

約数列:

[1, 2, 4, 67, 107, 134, 214, 268, 428, 7169, 14338, 22303, 28676, 44606, 89212, 1494301, 2386421, 2988602, 4772842, 5977204, 9545684, 159890207, 319780414, 639560828]

約数ペア:

[(1, 639560828), (2, 319780414), (4, 159890207), (67, 9545684), (107, 5977204), (134, 4772842), (214, 2988602), (268, 2386421), (428, 1494301), (7169, 89212), (14338, 44606), (22303, 28676)]