20540175

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{5827}}^1$

素因数の和:5887

約数の個数: 24

約数和(自身を含む): 34688256

約数和(自身を除く): 14148081

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 235, 705, 1175, 3525, 5827, 17481, 29135, 87405, 145675, 273869, 437025, 821607, 1369345, 4108035, 6846725, 20540175]

約数ペア:

[(1, 20540175), (3, 6846725), (5, 4108035), (15, 1369345), (25, 821607), (47, 437025), (75, 273869), (141, 145675), (235, 87405), (705, 29135), (1175, 17481), (3525, 5827)]