1290028

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:393

約数の個数: 24

約数和(自身を含む): 2437344

約数和(自身を除く): 1147316

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 311, 622, 1037, 1244, 2074, 4148, 5287, 10574, 18971, 21148, 37942, 75884, 322507, 645014, 1290028]

約数ペア:

[(1, 1290028), (2, 645014), (4, 322507), (17, 75884), (34, 37942), (61, 21148), (68, 18971), (122, 10574), (244, 5287), (311, 4148), (622, 2074), (1037, 1244)]