12647785340

素因数分解:

$2^2\times 5^1\times {\mathrm{13921}}^1\times {\mathrm{45427}}^1$

素因数の和:59357

約数の個数: 24

約数和(自身を含む): 26562841872

約数和(自身を除く): 13915056532

約数列:

[1, 2, 4, 5, 10, 20, 13921, 27842, 45427, 55684, 69605, 90854, 139210, 181708, 227135, 278420, 454270, 908540, 632389267, 1264778534, 2529557068, 3161946335, 6323892670, 12647785340]

約数ペア:

[(1, 12647785340), (2, 6323892670), (4, 3161946335), (5, 2529557068), (10, 1264778534), (20, 632389267), (13921, 908540), (27842, 454270), (45427, 278420), (55684, 227135), (69605, 181708), (90854, 139210)]