645951185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{863}}^1$

素因数の和:1349

約数の個数: 32

約数和(自身を含む): 875888640

約数和(自身を除く): 229937455

約数列:

[1, 5, 11, 31, 55, 155, 341, 439, 863, 1705, 2195, 4315, 4829, 9493, 13609, 24145, 26753, 47465, 68045, 133765, 149699, 294283, 378857, 748495, 1471415, 1894285, 4167427, 11744567, 20837135, 58722835, 129190237, 645951185]

約数ペア:

[(1, 645951185), (5, 129190237), (11, 58722835), (31, 20837135), (55, 11744567), (155, 4167427), (341, 1894285), (439, 1471415), (863, 748495), (1705, 378857), (2195, 294283), (4315, 149699), (4829, 133765), (9493, 68045), (13609, 47465), (24145, 26753)]