257834564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{521}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 504193536

約数和(自身を除く): 246358972

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 307, 403, 521, 614, 806, 1042, 1228, 1612, 2084, 3991, 6773, 7982, 9517, 13546, 15964, 16151, 19034, 27092, 32302, 38068, 64604, 123721, 159947, 209963, 247442, 319894, 419926, 494884, 639788, 839852, 2079311, 4158622, 4958357, 8317244, 9916714, 19833428, 64458641, 128917282, 257834564]

約数ペア:

[(1, 257834564), (2, 128917282), (4, 64458641), (13, 19833428), (26, 9916714), (31, 8317244), (52, 4958357), (62, 4158622), (124, 2079311), (307, 839852), (403, 639788), (521, 494884), (614, 419926), (806, 319894), (1042, 247442), (1228, 209963), (1612, 159947), (2084, 123721), (3991, 64604), (6773, 38068), (7982, 32302), (9517, 27092), (13546, 19034), (15964, 16151)]