155659984

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{69991}}^1$

素因数の和:70138

約数の個数: 20

約数和(自身を含む): 303765280

約数和(自身を除く): 148105296

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 69991, 139982, 279964, 559928, 1119856, 9728749, 19457498, 38914996, 77829992, 155659984]

約数ペア:

[(1, 155659984), (2, 77829992), (4, 38914996), (8, 19457498), (16, 9728749), (139, 1119856), (278, 559928), (556, 279964), (1112, 139982), (2224, 69991)]