790640

素因数分解:

$2^4\times 5^1\times {\mathrm{9883}}^1$

素因数の和:9896

約数の個数: 20

約数和(自身を含む): 1838424

約数和(自身を除く): 1047784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9883, 19766, 39532, 49415, 79064, 98830, 158128, 197660, 395320, 790640]

約数ペア:

[(1, 790640), (2, 395320), (4, 197660), (5, 158128), (8, 98830), (10, 79064), (16, 49415), (20, 39532), (40, 19766), (80, 9883)]