177137980

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{19993}}^1$

素因数の和:20445

約数の個数: 24

約数和(自身を含む): 372848112

約数和(自身を除く): 195710132

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 4430, 8860, 19993, 39986, 79972, 99965, 199930, 399860, 8856899, 17713798, 35427596, 44284495, 88568990, 177137980]

約数ペア:

[(1, 177137980), (2, 88568990), (4, 44284495), (5, 35427596), (10, 17713798), (20, 8856899), (443, 399860), (886, 199930), (1772, 99965), (2215, 79972), (4430, 39986), (8860, 19993)]