250420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 554400

約数和(自身を除く): 303980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 659, 1318, 2636, 3295, 6590, 12521, 13180, 25042, 50084, 62605, 125210, 250420]

約数ペア:

[(1, 250420), (2, 125210), (4, 62605), (5, 50084), (10, 25042), (19, 13180), (20, 12521), (38, 6590), (76, 3295), (95, 2636), (190, 1318), (380, 659)]