138090470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1972721}}^1$

素因数の和:1972735

約数の個数: 16

約数和(自身を含む): 284071968

約数和(自身を除く): 145981498

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1972721, 3945442, 9863605, 13809047, 19727210, 27618094, 69045235, 138090470]

約数ペア:

[(1, 138090470), (2, 69045235), (5, 27618094), (7, 19727210), (10, 13809047), (14, 9863605), (35, 3945442), (70, 1972721)]