84891980

素因数分解:

$2^2\times 5^1\times {\mathrm{1493}}^1\times {\mathrm{2843}}^1$

素因数の和:4345

約数の個数: 24

約数和(自身を含む): 178455312

約数和(自身を除く): 93563332

約数列:

[1, 2, 4, 5, 10, 20, 1493, 2843, 2986, 5686, 5972, 7465, 11372, 14215, 14930, 28430, 29860, 56860, 4244599, 8489198, 16978396, 21222995, 42445990, 84891980]

約数ペア:

[(1, 84891980), (2, 42445990), (4, 21222995), (5, 16978396), (10, 8489198), (20, 4244599), (1493, 56860), (2843, 29860), (2986, 28430), (5686, 14930), (5972, 14215), (7465, 11372)]