197978885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{42899}}^1$

素因数の和:42988

約数の個数: 16

約数和(自身を含む): 259459200

約数和(自身を除く): 61480315

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 42899, 214495, 557687, 2788435, 3045829, 15229145, 39595777, 197978885]

約数ペア:

[(1, 197978885), (5, 39595777), (13, 15229145), (65, 3045829), (71, 2788435), (355, 557687), (923, 214495), (4615, 42899)]