20745390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7129}}^1$

素因数の和:7236

約数の個数: 32

約数和(自身を含む): 50309280

約数和(自身を除く): 29563890

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 97, 194, 291, 485, 582, 970, 1455, 2910, 7129, 14258, 21387, 35645, 42774, 71290, 106935, 213870, 691513, 1383026, 2074539, 3457565, 4149078, 6915130, 10372695, 20745390]

約数ペア:

[(1, 20745390), (2, 10372695), (3, 6915130), (5, 4149078), (6, 3457565), (10, 2074539), (15, 1383026), (30, 691513), (97, 213870), (194, 106935), (291, 71290), (485, 42774), (582, 35645), (970, 21387), (1455, 14258), (2910, 7129)]