20197304

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1493}}^1$

素因数の和:1607

約数の個数: 32

約数和(自身を含む): 40338000

約数和(自身を除く): 20140696

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 712, 1493, 1691, 2986, 3382, 5972, 6764, 11944, 13528, 28367, 56734, 113468, 132877, 226936, 265754, 531508, 1063016, 2524663, 5049326, 10098652, 20197304]

約数ペア:

[(1, 20197304), (2, 10098652), (4, 5049326), (8, 2524663), (19, 1063016), (38, 531508), (76, 265754), (89, 226936), (152, 132877), (178, 113468), (356, 56734), (712, 28367), (1493, 13528), (1691, 11944), (2986, 6764), (3382, 5972)]