15390640

素因数分解:

$2^4\times 5^1\times {\mathrm{192383}}^1$

素因数の和:192396

約数の個数: 20

約数和(自身を含む): 35783424

約数和(自身を除く): 20392784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 192383, 384766, 769532, 961915, 1539064, 1923830, 3078128, 3847660, 7695320, 15390640]

約数ペア:

[(1, 15390640), (2, 7695320), (4, 3847660), (5, 3078128), (8, 1923830), (10, 1539064), (16, 961915), (20, 769532), (40, 384766), (80, 192383)]