259680512

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 651071232

約数和(自身を除く): 391390720

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 71, 91, 104, 112, 128, 142, 157, 182, 208, 224, 256, 284, 314, 364, 416, 448, 497, 568, 628, 728, 832, 896, 923, 994, 1099, 1136, 1256, 1456, 1664, 1792, 1846, 1988, 2041, 2198, 2272, 2512, 2912, 3328, 3692, 3976, 4082, 4396, 4544, 5024, 5824, 6461, 7384, 7952, 8164, 8792, 9088, 10048, 11147, 11648, 12922, 14287, 14768, 15904, 16328, 17584, 18176, 20096, 22294, 23296, 25844, 28574, 29536, 31808, 32656, 35168, 40192, 44588, 51688, 57148, 59072, 63616, 65312, 70336, 78029, 89176, 103376, 114296, 118144, 127232, 130624, 140672, 144911, 156058, 178352, 206752, 228592, 236288, 261248, 281344, 289822, 312116, 356704, 413504, 457184, 522496, 579644, 624232, 713408, 827008, 914368, 1014377, 1159288, 1248464, 1426816, 1654016, 1828736, 2028754, 2318576, 2496928, 2853632, 3657472, 4057508, 4637152, 4993856, 8115016, 9274304, 9987712, 16230032, 18548608, 19975424, 32460064, 37097216, 64920128, 129840256, 259680512]

約数ペア:

[(1, 259680512), (2, 129840256), (4, 64920128), (7, 37097216), (8, 32460064), (13, 19975424), (14, 18548608), (16, 16230032), (26, 9987712), (28, 9274304), (32, 8115016), (52, 4993856), (56, 4637152), (64, 4057508), (71, 3657472), (91, 2853632), (104, 2496928), (112, 2318576), (128, 2028754), (142, 1828736), (157, 1654016), (182, 1426816), (208, 1248464), (224, 1159288), (256, 1014377), (284, 914368), (314, 827008), (364, 713408), (416, 624232), (448, 579644), (497, 522496), (568, 457184), (628, 413504), (728, 356704), (832, 312116), (896, 289822), (923, 281344), (994, 261248), (1099, 236288), (1136, 228592), (1256, 206752), (1456, 178352), (1664, 156058), (1792, 144911), (1846, 140672), (1988, 130624), (2041, 127232), (2198, 118144), (2272, 114296), (2512, 103376), (2912, 89176), (3328, 78029), (3692, 70336), (3976, 65312), (4082, 63616), (4396, 59072), (4544, 57148), (5024, 51688), (5824, 44588), (6461, 40192), (7384, 35168), (7952, 32656), (8164, 31808), (8792, 29536), (9088, 28574), (10048, 25844), (11147, 23296), (11648, 22294), (12922, 20096), (14287, 18176), (14768, 17584), (15904, 16328)]