139277260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409639}}^1$

素因数の和:409665

約数の個数: 24

約数和(自身を含む): 309687840

約数和(自身を除く): 170410580

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 409639, 819278, 1638556, 2048195, 4096390, 6963863, 8192780, 13927726, 27855452, 34819315, 69638630, 139277260]

約数ペア:

[(1, 139277260), (2, 69638630), (4, 34819315), (5, 27855452), (10, 13927726), (17, 8192780), (20, 6963863), (34, 4096390), (68, 2048195), (85, 1638556), (170, 819278), (340, 409639)]