81954938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 135535680

約数和(自身を除く): 53580742

約数列:

[1, 2, 13, 26, 89, 107, 178, 214, 331, 662, 1157, 1391, 2314, 2782, 4303, 8606, 9523, 19046, 29459, 35417, 58918, 70834, 123799, 247598, 382967, 460421, 765934, 920842, 3152113, 6304226, 40977469, 81954938]

約数ペア:

[(1, 81954938), (2, 40977469), (13, 6304226), (26, 3152113), (89, 920842), (107, 765934), (178, 460421), (214, 382967), (331, 247598), (662, 123799), (1157, 70834), (1391, 58918), (2314, 35417), (2782, 29459), (4303, 19046), (8606, 9523)]