12387290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1289}}^1$

素因数の和:1358

約数の個数: 24

約数和(自身を含む): 23057460

約数和(自身を除く): 10670170

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1289, 1922, 2578, 4805, 6445, 9610, 12890, 39959, 79918, 199795, 399590, 1238729, 2477458, 6193645, 12387290]

約数ペア:

[(1, 12387290), (2, 6193645), (5, 2477458), (10, 1238729), (31, 399590), (62, 199795), (155, 79918), (310, 39959), (961, 12890), (1289, 9610), (1922, 6445), (2578, 4805)]