21468272080

素因数分解:

$2^4\times 5^1\times {\mathrm{268353401}}^1$

素因数の和:268353414

約数の個数: 20

約数和(自身を含む): 49913732772

約数和(自身を除く): 28445460692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 268353401, 536706802, 1073413604, 1341767005, 2146827208, 2683534010, 4293654416, 5367068020, 10734136040, 21468272080]

約数ペア:

[(1, 21468272080), (2, 10734136040), (4, 5367068020), (5, 4293654416), (8, 2683534010), (10, 2146827208), (16, 1341767005), (20, 1073413604), (40, 536706802), (80, 268353401)]