256433408

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13009}}^1$

素因数の和:13043

約数の個数: 72

約数和(自身を含む): 638218560

約数和(自身を除く): 381785152

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 256, 308, 352, 448, 616, 704, 896, 1232, 1408, 1792, 2464, 2816, 4928, 9856, 13009, 19712, 26018, 52036, 91063, 104072, 143099, 182126, 208144, 286198, 364252, 416288, 572396, 728504, 832576, 1001693, 1144792, 1457008, 1665152, 2003386, 2289584, 2914016, 3330304, 4006772, 4579168, 5828032, 8013544, 9158336, 11656064, 16027088, 18316672, 23312128, 32054176, 36633344, 64108352, 128216704, 256433408]

約数ペア:

[(1, 256433408), (2, 128216704), (4, 64108352), (7, 36633344), (8, 32054176), (11, 23312128), (14, 18316672), (16, 16027088), (22, 11656064), (28, 9158336), (32, 8013544), (44, 5828032), (56, 4579168), (64, 4006772), (77, 3330304), (88, 2914016), (112, 2289584), (128, 2003386), (154, 1665152), (176, 1457008), (224, 1144792), (256, 1001693), (308, 832576), (352, 728504), (448, 572396), (616, 416288), (704, 364252), (896, 286198), (1232, 208144), (1408, 182126), (1792, 143099), (2464, 104072), (2816, 91063), (4928, 52036), (9856, 26018), (13009, 19712)]