1287988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:112

約数の個数: 48

約数和(自身を含む): 2709504

約数和(自身を除く): 1421516

約数列:

[1, 2, 4, 13, 17, 26, 31, 34, 47, 52, 62, 68, 94, 124, 188, 221, 403, 442, 527, 611, 799, 806, 884, 1054, 1222, 1457, 1598, 1612, 2108, 2444, 2914, 3196, 5828, 6851, 10387, 13702, 18941, 20774, 24769, 27404, 37882, 41548, 49538, 75764, 99076, 321997, 643994, 1287988]

約数ペア:

[(1, 1287988), (2, 643994), (4, 321997), (13, 99076), (17, 75764), (26, 49538), (31, 41548), (34, 37882), (47, 27404), (52, 24769), (62, 20774), (68, 18941), (94, 13702), (124, 10387), (188, 6851), (221, 5828), (403, 3196), (442, 2914), (527, 2444), (611, 2108), (799, 1612), (806, 1598), (884, 1457), (1054, 1222)]