137257720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79801}}^1$

素因数の和:79855

約数の個数: 32

約数和(自身を含む): 316015920

約数和(自身を除く): 178758200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 79801, 159602, 319204, 399005, 638408, 798010, 1596020, 3192040, 3431443, 6862886, 13725772, 17157215, 27451544, 34314430, 68628860, 137257720]

約数ペア:

[(1, 137257720), (2, 68628860), (4, 34314430), (5, 27451544), (8, 17157215), (10, 13725772), (20, 6862886), (40, 3431443), (43, 3192040), (86, 1596020), (172, 798010), (215, 638408), (344, 399005), (430, 319204), (860, 159602), (1720, 79801)]