397348540

素因数分解:

$2^2\times 5^1\times {\mathrm{761}}^1\times {\mathrm{26107}}^1$

素因数の和:26877

約数の個数: 24

約数和(自身を含む): 835560432

約数和(自身を除く): 438211892

約数列:

[1, 2, 4, 5, 10, 20, 761, 1522, 3044, 3805, 7610, 15220, 26107, 52214, 104428, 130535, 261070, 522140, 19867427, 39734854, 79469708, 99337135, 198674270, 397348540]

約数ペア:

[(1, 397348540), (2, 198674270), (4, 99337135), (5, 79469708), (10, 39734854), (20, 19867427), (761, 522140), (1522, 261070), (3044, 130535), (3805, 104428), (7610, 52214), (15220, 26107)]