64919884

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{2029}}^1$

素因数の和:2473

約数の個数: 24

約数和(自身を含む): 119932400

約数和(自身を除く): 55012516

約数列:

[1, 2, 4, 19, 38, 76, 421, 842, 1684, 2029, 4058, 7999, 8116, 15998, 31996, 38551, 77102, 154204, 854209, 1708418, 3416836, 16229971, 32459942, 64919884]

約数ペア:

[(1, 64919884), (2, 32459942), (4, 16229971), (19, 3416836), (38, 1708418), (76, 854209), (421, 154204), (842, 77102), (1684, 38551), (2029, 31996), (4058, 15998), (7999, 8116)]