398376470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{21499}}^1$

素因数の和:21632

約数の個数: 32

約数和(自身を含む): 766260000

約数和(自身を除く): 367883530

約数列:

[1, 2, 5, 10, 17, 34, 85, 109, 170, 218, 545, 1090, 1853, 3706, 9265, 18530, 21499, 42998, 107495, 214990, 365483, 730966, 1827415, 2343391, 3654830, 4686782, 11716955, 23433910, 39837647, 79675294, 199188235, 398376470]

約数ペア:

[(1, 398376470), (2, 199188235), (5, 79675294), (10, 39837647), (17, 23433910), (34, 11716955), (85, 4686782), (109, 3654830), (170, 2343391), (218, 1827415), (545, 730966), (1090, 365483), (1853, 214990), (3706, 107495), (9265, 42998), (18530, 21499)]