680884

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 36

約数和(自身を含む): 1375360

約数和(自身を除く): 694476

約数列:

[1, 2, 4, 17, 19, 31, 34, 38, 62, 68, 76, 124, 289, 323, 527, 578, 589, 646, 1054, 1156, 1178, 1292, 2108, 2356, 5491, 8959, 10013, 10982, 17918, 20026, 21964, 35836, 40052, 170221, 340442, 680884]

約数ペア:

[(1, 680884), (2, 340442), (4, 170221), (17, 40052), (19, 35836), (31, 21964), (34, 20026), (38, 17918), (62, 10982), (68, 10013), (76, 8959), (124, 5491), (289, 2356), (323, 2108), (527, 1292), (578, 1178), (589, 1156), (646, 1054)]