199912144

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{175979}}^1$

素因数の和:176058

約数の個数: 20

約数和(自身を含む): 392787360

約数和(自身を除く): 192875216

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 175979, 351958, 703916, 1407832, 2815664, 12494509, 24989018, 49978036, 99956072, 199912144]

約数ペア:

[(1, 199912144), (2, 99956072), (4, 49978036), (8, 24989018), (16, 12494509), (71, 2815664), (142, 1407832), (284, 703916), (568, 351958), (1136, 175979)]