17872420

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{3739}}^1$

素因数の和:3987

約数の個数: 24

約数和(自身を含む): 37699200

約数和(自身を除く): 19826780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 3739, 4780, 7478, 14956, 18695, 37390, 74780, 893621, 1787242, 3574484, 4468105, 8936210, 17872420]

約数ペア:

[(1, 17872420), (2, 8936210), (4, 4468105), (5, 3574484), (10, 1787242), (20, 893621), (239, 74780), (478, 37390), (956, 18695), (1195, 14956), (2390, 7478), (3739, 4780)]