320423140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{10589}}^1$

素因数の和:10704

約数の個数: 48

約数和(自身を含む): 720543600

約数和(自身を除く): 400120460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 890, 1513, 1780, 3026, 6052, 7565, 10589, 15130, 21178, 30260, 42356, 52945, 105890, 180013, 211780, 360026, 720052, 900065, 942421, 1800130, 1884842, 3600260, 3769684, 4712105, 9424210, 16021157, 18848420, 32042314, 64084628, 80105785, 160211570, 320423140]

約数ペア:

[(1, 320423140), (2, 160211570), (4, 80105785), (5, 64084628), (10, 32042314), (17, 18848420), (20, 16021157), (34, 9424210), (68, 4712105), (85, 3769684), (89, 3600260), (170, 1884842), (178, 1800130), (340, 942421), (356, 900065), (445, 720052), (890, 360026), (1513, 211780), (1780, 180013), (3026, 105890), (6052, 52945), (7565, 42356), (10589, 30260), (15130, 21178)]