20214618905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{647}}^1\times {\mathrm{2099}}^1$

素因数の和:2993

約数の個数: 32

約数和(自身を含む): 26290656000

約数和(自身を除く): 6076037095

約数列:

[1, 5, 13, 65, 229, 647, 1145, 2099, 2977, 3235, 8411, 10495, 14885, 27287, 42055, 136435, 148163, 480671, 740815, 1358053, 1926119, 2403355, 6248723, 6790265, 9630595, 17654689, 31243615, 88273445, 310994137, 1554970685, 4042923781, 20214618905]

約数ペア:

[(1, 20214618905), (5, 4042923781), (13, 1554970685), (65, 310994137), (229, 88273445), (647, 31243615), (1145, 17654689), (2099, 9630595), (2977, 6790265), (3235, 6248723), (8411, 2403355), (10495, 1926119), (14885, 1358053), (27287, 740815), (42055, 480671), (136435, 148163)]