405890485

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{81097}}^1$

素因数の和:81133

約数の個数: 32

約数和(自身を含む): 653974272

約数和(自身を除く): 248083787

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 5005, 81097, 405485, 567679, 892067, 1054261, 2838395, 4460335, 5271305, 6244469, 7379827, 11596871, 31222345, 36899135, 57984355, 81178097, 405890485]

約数ペア:

[(1, 405890485), (5, 81178097), (7, 57984355), (11, 36899135), (13, 31222345), (35, 11596871), (55, 7379827), (65, 6244469), (77, 5271305), (91, 4460335), (143, 2838395), (385, 1054261), (455, 892067), (715, 567679), (1001, 405485), (5005, 81097)]