81080368

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{36457}}^1$

素因数の和:36604

約数の個数: 20

約数和(自身を含む): 158227720

約数和(自身を除く): 77147352

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 36457, 72914, 145828, 291656, 583312, 5067523, 10135046, 20270092, 40540184, 81080368]

約数ペア:

[(1, 81080368), (2, 40540184), (4, 20270092), (8, 10135046), (16, 5067523), (139, 583312), (278, 291656), (556, 145828), (1112, 72914), (2224, 36457)]