20938760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27551}}^1$

素因数の和:27581

約数の個数: 32

約数和(自身を含む): 49593600

約数和(自身を除く): 28654840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27551, 55102, 110204, 137755, 220408, 275510, 523469, 551020, 1046938, 1102040, 2093876, 2617345, 4187752, 5234690, 10469380, 20938760]

約数ペア:

[(1, 20938760), (2, 10469380), (4, 5234690), (5, 4187752), (8, 2617345), (10, 2093876), (19, 1102040), (20, 1046938), (38, 551020), (40, 523469), (76, 275510), (95, 220408), (152, 137755), (190, 110204), (380, 55102), (760, 27551)]