78030640

素因数分解:

$2^4\times 5^1\times {\mathrm{975383}}^1$

素因数の和:975396

約数の個数: 20

約数和(自身を含む): 181421424

約数和(自身を除く): 103390784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 975383, 1950766, 3901532, 4876915, 7803064, 9753830, 15606128, 19507660, 39015320, 78030640]

約数ペア:

[(1, 78030640), (2, 39015320), (4, 19507660), (5, 15606128), (8, 9753830), (10, 7803064), (16, 4876915), (20, 3901532), (40, 1950766), (80, 975383)]