28081480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100291}}^1$

素因数の和:100309

約数の個数: 32

約数和(自身を含む): 72210240

約数和(自身を除く): 44128760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100291, 200582, 401164, 501455, 702037, 802328, 1002910, 1404074, 2005820, 2808148, 3510185, 4011640, 5616296, 7020370, 14040740, 28081480]

約数ペア:

[(1, 28081480), (2, 14040740), (4, 7020370), (5, 5616296), (7, 4011640), (8, 3510185), (10, 2808148), (14, 2005820), (20, 1404074), (28, 1002910), (35, 802328), (40, 702037), (56, 501455), (70, 401164), (140, 200582), (280, 100291)]