18154520

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4679}}^1$

素因数の和:4787

約数の個数: 32

約数和(自身を含む): 41277600

約数和(自身を除く): 23123080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4679, 9358, 18716, 23395, 37432, 46790, 93580, 187160, 453863, 907726, 1815452, 2269315, 3630904, 4538630, 9077260, 18154520]

約数ペア:

[(1, 18154520), (2, 9077260), (4, 4538630), (5, 3630904), (8, 2269315), (10, 1815452), (20, 907726), (40, 453863), (97, 187160), (194, 93580), (388, 46790), (485, 37432), (776, 23395), (970, 18716), (1940, 9358), (3880, 4679)]