28834220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 62233920

約数和(自身を除く): 33399700

約数列:

[1, 2, 4, 5, 10, 20, 89, 97, 167, 178, 194, 334, 356, 388, 445, 485, 668, 835, 890, 970, 1670, 1780, 1940, 3340, 8633, 14863, 16199, 17266, 29726, 32398, 34532, 43165, 59452, 64796, 74315, 80995, 86330, 148630, 161990, 172660, 297260, 323980, 1441711, 2883422, 5766844, 7208555, 14417110, 28834220]

約数ペア:

[(1, 28834220), (2, 14417110), (4, 7208555), (5, 5766844), (10, 2883422), (20, 1441711), (89, 323980), (97, 297260), (167, 172660), (178, 161990), (194, 148630), (334, 86330), (356, 80995), (388, 74315), (445, 64796), (485, 59452), (668, 43165), (835, 34532), (890, 32398), (970, 29726), (1670, 17266), (1780, 16199), (1940, 14863), (3340, 8633)]