20656240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23473}}^1$

素因数の和:23497

約数の個数: 40

約数和(自身を含む): 52393968

約数和(自身を除く): 31737728

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23473, 46946, 93892, 117365, 187784, 234730, 258203, 375568, 469460, 516406, 938920, 1032812, 1291015, 1877840, 2065624, 2582030, 4131248, 5164060, 10328120, 20656240]

約数ペア:

[(1, 20656240), (2, 10328120), (4, 5164060), (5, 4131248), (8, 2582030), (10, 2065624), (11, 1877840), (16, 1291015), (20, 1032812), (22, 938920), (40, 516406), (44, 469460), (55, 375568), (80, 258203), (88, 234730), (110, 187784), (176, 117365), (220, 93892), (440, 46946), (880, 23473)]