2557996

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:470

約数の個数: 36

約数和(自身を含む): 5388096

約数和(自身を除く): 2830100

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 421, 434, 842, 868, 1519, 1684, 2947, 3038, 5894, 6076, 11788, 13051, 20629, 26102, 41258, 52204, 82516, 91357, 182714, 365428, 639499, 1278998, 2557996]

約数ペア:

[(1, 2557996), (2, 1278998), (4, 639499), (7, 365428), (14, 182714), (28, 91357), (31, 82516), (49, 52204), (62, 41258), (98, 26102), (124, 20629), (196, 13051), (217, 11788), (421, 6076), (434, 5894), (842, 3038), (868, 2947), (1519, 1684)]