20040212

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{15511}}^1$

素因数の和:15551

約数の個数: 24

約数和(自身を含む): 39090240

約数和(自身を除く): 19050028

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 15511, 31022, 62044, 263687, 294709, 527374, 589418, 1054748, 1178836, 5010053, 10020106, 20040212]

約数ペア:

[(1, 20040212), (2, 10020106), (4, 5010053), (17, 1178836), (19, 1054748), (34, 589418), (38, 527374), (68, 294709), (76, 263687), (323, 62044), (646, 31022), (1292, 15511)]