397996879

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 483397632

約数和(自身を除く): 85400753

約数列:

[1, 7, 31, 61, 107, 217, 281, 427, 749, 1891, 1967, 3317, 6527, 8711, 13237, 17141, 23219, 30067, 45689, 60977, 119987, 202337, 210469, 531371, 932077, 1416359, 1834087, 3719597, 6524539, 12838609, 56856697, 397996879]

約数ペア:

[(1, 397996879), (7, 56856697), (31, 12838609), (61, 6524539), (107, 3719597), (217, 1834087), (281, 1416359), (427, 932077), (749, 531371), (1891, 210469), (1967, 202337), (3317, 119987), (6527, 60977), (8711, 45689), (13237, 30067), (17141, 23219)]