20731253390

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{277}}^1\times {\mathrm{27617}}^1$

素因数の和:28172

約数の個数: 32

約数和(自身を含む): 37590528384

約数和(自身を除く): 16859274994

約数列:

[1, 2, 5, 10, 271, 277, 542, 554, 1355, 1385, 2710, 2770, 27617, 55234, 75067, 138085, 150134, 276170, 375335, 750670, 7484207, 7649909, 14968414, 15299818, 37421035, 38249545, 74842070, 76499090, 2073125339, 4146250678, 10365626695, 20731253390]

約数ペア:

[(1, 20731253390), (2, 10365626695), (5, 4146250678), (10, 2073125339), (271, 76499090), (277, 74842070), (542, 38249545), (554, 37421035), (1355, 15299818), (1385, 14968414), (2710, 7649909), (2770, 7484207), (27617, 750670), (55234, 375335), (75067, 276170), (138085, 150134)]