644861789

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{397}}^1$

素因数の和:765

約数の個数: 32

約数和(自身を含む): 782576256

約数和(自身を除く): 137714467

約数列:

[1, 11, 13, 37, 143, 307, 397, 407, 481, 3377, 3991, 4367, 5161, 5291, 11359, 14689, 43901, 56771, 121879, 124949, 147667, 161579, 190957, 1340669, 1584427, 1624337, 2100527, 4509523, 17428697, 49604753, 58623799, 644861789]

約数ペア:

[(1, 644861789), (11, 58623799), (13, 49604753), (37, 17428697), (143, 4509523), (307, 2100527), (397, 1624337), (407, 1584427), (481, 1340669), (3377, 190957), (3991, 161579), (4367, 147667), (5161, 124949), (5291, 121879), (11359, 56771), (14689, 43901)]