209842075

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{659}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 267125760

約数和(自身を除く): 57283685

約数列:

[1, 5, 25, 47, 235, 271, 659, 1175, 1355, 3295, 6775, 12737, 16475, 30973, 63685, 154865, 178589, 318425, 774325, 892945, 4464725, 8393683, 41968415, 209842075]

約数ペア:

[(1, 209842075), (5, 41968415), (25, 8393683), (47, 4464725), (235, 892945), (271, 774325), (659, 318425), (1175, 178589), (1355, 154865), (3295, 63685), (6775, 30973), (12737, 16475)]