123728690

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139021}}^1$

素因数の和:139117

約数の個数: 16

約数和(自身を含む): 225215640

約数和(自身を除く): 101486950

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 139021, 278042, 695105, 1390210, 12372869, 24745738, 61864345, 123728690]

約数ペア:

[(1, 123728690), (2, 61864345), (5, 24745738), (10, 12372869), (89, 1390210), (178, 695105), (445, 278042), (890, 139021)]