20081195

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 27086400

約数和(自身を除く): 7005205

約数列:

[1, 5, 19, 29, 37, 95, 145, 185, 197, 551, 703, 985, 1073, 2755, 3515, 3743, 5365, 5713, 7289, 18715, 20387, 28565, 36445, 101935, 108547, 138491, 211381, 542735, 692455, 1056905, 4016239, 20081195]

約数ペア:

[(1, 20081195), (5, 4016239), (19, 1056905), (29, 692455), (37, 542735), (95, 211381), (145, 138491), (185, 108547), (197, 101935), (551, 36445), (703, 28565), (985, 20387), (1073, 18715), (2755, 7289), (3515, 5713), (3743, 5365)]