206545045

素因数分解:

$5^1\times 7^2\times {\mathrm{647}}^1\times {\mathrm{1303}}^1$

素因数の和:1969

約数の個数: 24

約数和(自身を含む): 288987264

約数和(自身を除く): 82442219

約数列:

[1, 5, 7, 35, 49, 245, 647, 1303, 3235, 4529, 6515, 9121, 22645, 31703, 45605, 63847, 158515, 319235, 843041, 4215205, 5901287, 29506435, 41309009, 206545045]

約数ペア:

[(1, 206545045), (5, 41309009), (7, 29506435), (35, 5901287), (49, 4215205), (245, 843041), (647, 319235), (1303, 158515), (3235, 63847), (4529, 45605), (6515, 31703), (9121, 22645)]