401990995

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{1949}}^1$

素因数の和:2115

約数の個数: 32

約数和(自身を含む): 566092800

約数和(自身を除く): 164101805

約数列:

[1, 5, 7, 35, 71, 83, 355, 415, 497, 581, 1949, 2485, 2905, 5893, 9745, 13643, 29465, 41251, 68215, 138379, 161767, 206255, 691895, 808835, 968653, 1132369, 4843265, 5661845, 11485457, 57427285, 80398199, 401990995]

約数ペア:

[(1, 401990995), (5, 80398199), (7, 57427285), (35, 11485457), (71, 5661845), (83, 4843265), (355, 1132369), (415, 968653), (497, 808835), (581, 691895), (1949, 206255), (2485, 161767), (2905, 138379), (5893, 68215), (9745, 41251), (13643, 29465)]