42494740

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 91420560

約数和(自身を除く): 48925820

約数列:

[1, 2, 4, 5, 10, 20, 101, 109, 193, 202, 218, 386, 404, 436, 505, 545, 772, 965, 1010, 1090, 1930, 2020, 2180, 3860, 11009, 19493, 21037, 22018, 38986, 42074, 44036, 55045, 77972, 84148, 97465, 105185, 110090, 194930, 210370, 220180, 389860, 420740, 2124737, 4249474, 8498948, 10623685, 21247370, 42494740]

約数ペア:

[(1, 42494740), (2, 21247370), (4, 10623685), (5, 8498948), (10, 4249474), (20, 2124737), (101, 420740), (109, 389860), (193, 220180), (202, 210370), (218, 194930), (386, 110090), (404, 105185), (436, 97465), (505, 84148), (545, 77972), (772, 55045), (965, 44036), (1010, 42074), (1090, 38986), (1930, 22018), (2020, 21037), (2180, 19493), (3860, 11009)]