64788940

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{7027}}^1$

素因数の和:7497

約数の個数: 24

約数和(自身を含む): 136371312

約数和(自身を除く): 71582372

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2305, 4610, 7027, 9220, 14054, 28108, 35135, 70270, 140540, 3239447, 6478894, 12957788, 16197235, 32394470, 64788940]

約数ペア:

[(1, 64788940), (2, 32394470), (4, 16197235), (5, 12957788), (10, 6478894), (20, 3239447), (461, 140540), (922, 70270), (1844, 35135), (2305, 28108), (4610, 14054), (7027, 9220)]