20589220

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10613}}^1$

素因数の和:10719

約数の個数: 24

約数和(自身を含む): 43687224

約数和(自身を除く): 23098004

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10613, 21226, 42452, 53065, 106130, 212260, 1029461, 2058922, 4117844, 5147305, 10294610, 20589220]

約数ペア:

[(1, 20589220), (2, 10294610), (4, 5147305), (5, 4117844), (10, 2058922), (20, 1029461), (97, 212260), (194, 106130), (388, 53065), (485, 42452), (970, 21226), (1940, 10613)]