256403712

素因数分解:

$2^8\times 3^1\times {\mathrm{563}}^1\times {\mathrm{593}}^1$

素因数の和:1175

約数の個数: 72

約数和(自身を含む): 684772704

約数和(自身を除く): 428368992

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 563, 593, 768, 1126, 1186, 1689, 1779, 2252, 2372, 3378, 3558, 4504, 4744, 6756, 7116, 9008, 9488, 13512, 14232, 18016, 18976, 27024, 28464, 36032, 37952, 54048, 56928, 72064, 75904, 108096, 113856, 144128, 151808, 216192, 227712, 333859, 432384, 455424, 667718, 1001577, 1335436, 2003154, 2670872, 4006308, 5341744, 8012616, 10683488, 16025232, 21366976, 32050464, 42733952, 64100928, 85467904, 128201856, 256403712]

約数ペア:

[(1, 256403712), (2, 128201856), (3, 85467904), (4, 64100928), (6, 42733952), (8, 32050464), (12, 21366976), (16, 16025232), (24, 10683488), (32, 8012616), (48, 5341744), (64, 4006308), (96, 2670872), (128, 2003154), (192, 1335436), (256, 1001577), (384, 667718), (563, 455424), (593, 432384), (768, 333859), (1126, 227712), (1186, 216192), (1689, 151808), (1779, 144128), (2252, 113856), (2372, 108096), (3378, 75904), (3558, 72064), (4504, 56928), (4744, 54048), (6756, 37952), (7116, 36032), (9008, 28464), (9488, 27024), (13512, 18976), (14232, 18016)]