81497392

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{31249}}^1$

素因数の和:31420

約数の個数: 20

約数和(自身を含む): 158875000

約数和(自身を除く): 77377608

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 31249, 62498, 124996, 249992, 499984, 5093587, 10187174, 20374348, 40748696, 81497392]

約数ペア:

[(1, 81497392), (2, 40748696), (4, 20374348), (8, 10187174), (16, 5093587), (163, 499984), (326, 249992), (652, 124996), (1304, 62498), (2608, 31249)]