81388186

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 136002240

約数和(自身を除く): 54614054

約数列:

[1, 2, 11, 22, 89, 178, 197, 211, 394, 422, 979, 1958, 2167, 2321, 4334, 4642, 17533, 18779, 35066, 37558, 41567, 83134, 192863, 206569, 385726, 413138, 457237, 914474, 3699463, 7398926, 40694093, 81388186]

約数ペア:

[(1, 81388186), (2, 40694093), (11, 7398926), (22, 3699463), (89, 914474), (178, 457237), (197, 413138), (211, 385726), (394, 206569), (422, 192863), (979, 83134), (1958, 41567), (2167, 37558), (2321, 35066), (4334, 18779), (4642, 17533)]