20448940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53813}}^1$

素因数の和:53841

約数の個数: 24

約数和(自身を含む): 45203760

約数和(自身を除く): 24754820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53813, 107626, 215252, 269065, 538130, 1022447, 1076260, 2044894, 4089788, 5112235, 10224470, 20448940]

約数ペア:

[(1, 20448940), (2, 10224470), (4, 5112235), (5, 4089788), (10, 2044894), (19, 1076260), (20, 1022447), (38, 538130), (76, 269065), (95, 215252), (190, 107626), (380, 53813)]