131285248

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 275498496

約数和(自身を除く): 144213248

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 71, 124, 128, 142, 233, 248, 256, 284, 466, 496, 568, 932, 992, 1136, 1864, 1984, 2201, 2272, 3728, 3968, 4402, 4544, 7223, 7456, 7936, 8804, 9088, 14446, 14912, 16543, 17608, 18176, 28892, 29824, 33086, 35216, 57784, 59648, 66172, 70432, 115568, 132344, 140864, 231136, 264688, 281728, 462272, 512833, 529376, 563456, 924544, 1025666, 1058752, 1849088, 2051332, 2117504, 4102664, 4235008, 8205328, 16410656, 32821312, 65642624, 131285248]

約数ペア:

[(1, 131285248), (2, 65642624), (4, 32821312), (8, 16410656), (16, 8205328), (31, 4235008), (32, 4102664), (62, 2117504), (64, 2051332), (71, 1849088), (124, 1058752), (128, 1025666), (142, 924544), (233, 563456), (248, 529376), (256, 512833), (284, 462272), (466, 281728), (496, 264688), (568, 231136), (932, 140864), (992, 132344), (1136, 115568), (1864, 70432), (1984, 66172), (2201, 59648), (2272, 57784), (3728, 35216), (3968, 33086), (4402, 29824), (4544, 28892), (7223, 18176), (7456, 17608), (7936, 16543), (8804, 14912), (9088, 14446)]