2807945

素因数分解:

$5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 3998664

約数和(自身を除く): 1190719

約数列:

[1, 5, 7, 35, 49, 73, 157, 245, 365, 511, 785, 1099, 2555, 3577, 5495, 7693, 11461, 17885, 38465, 57305, 80227, 401135, 561589, 2807945]

約数ペア:

[(1, 2807945), (5, 561589), (7, 401135), (35, 80227), (49, 57305), (73, 38465), (157, 17885), (245, 11461), (365, 7693), (511, 5495), (785, 3577), (1099, 2555)]