257202828

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{90437}}^1$

素因数の和:90526

約数の個数: 36

約数和(自身を含む): 658388640

約数和(自身を除く): 401185812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 316, 474, 711, 948, 1422, 2844, 90437, 180874, 271311, 361748, 542622, 813933, 1085244, 1627866, 3255732, 7144523, 14289046, 21433569, 28578092, 42867138, 64300707, 85734276, 128601414, 257202828]

約数ペア:

[(1, 257202828), (2, 128601414), (3, 85734276), (4, 64300707), (6, 42867138), (9, 28578092), (12, 21433569), (18, 14289046), (36, 7144523), (79, 3255732), (158, 1627866), (237, 1085244), (316, 813933), (474, 542622), (711, 361748), (948, 271311), (1422, 180874), (2844, 90437)]