199390640

素因数分解:

$2^4\times 5^1\times {\mathrm{2492383}}^1$

素因数の和:2492396

約数の個数: 20

約数和(自身を含む): 463583424

約数和(自身を除く): 264192784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2492383, 4984766, 9969532, 12461915, 19939064, 24923830, 39878128, 49847660, 99695320, 199390640]

約数ペア:

[(1, 199390640), (2, 99695320), (4, 49847660), (5, 39878128), (8, 24923830), (10, 19939064), (16, 12461915), (20, 9969532), (40, 4984766), (80, 2492383)]