389727778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1\times {\mathrm{2011}}^1$

素因数の和:2430

約数の個数: 32

約数和(自身を含む): 667533312

約数和(自身を除く): 277805534

約数列:

[1, 2, 11, 22, 23, 46, 253, 383, 506, 766, 2011, 4022, 4213, 8426, 8809, 17618, 22121, 44242, 46253, 92506, 96899, 193798, 508783, 770213, 1017566, 1540426, 8472343, 16944686, 17714899, 35429798, 194863889, 389727778]

約数ペア:

[(1, 389727778), (2, 194863889), (11, 35429798), (22, 17714899), (23, 16944686), (46, 8472343), (253, 1540426), (383, 1017566), (506, 770213), (766, 508783), (2011, 193798), (4022, 96899), (4213, 92506), (8426, 46253), (8809, 44242), (17618, 22121)]