18680810

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 34618752

約数和(自身を除く): 15937942

約数列:

[1, 2, 5, 10, 71, 83, 142, 166, 317, 355, 415, 634, 710, 830, 1585, 3170, 5893, 11786, 22507, 26311, 29465, 45014, 52622, 58930, 112535, 131555, 225070, 263110, 1868081, 3736162, 9340405, 18680810]

約数ペア:

[(1, 18680810), (2, 9340405), (5, 3736162), (10, 1868081), (71, 263110), (83, 225070), (142, 131555), (166, 112535), (317, 58930), (355, 52622), (415, 45014), (634, 29465), (710, 26311), (830, 22507), (1585, 11786), (3170, 5893)]