278442080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{248609}}^1$

素因数の和:248631

約数の個数: 48

約数和(自身を含む): 751796640

約数和(自身を除く): 473354560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 248609, 497218, 994436, 1243045, 1740263, 1988872, 2486090, 3480526, 3977744, 4972180, 6961052, 7955488, 8701315, 9944360, 13922104, 17402630, 19888720, 27844208, 34805260, 39777440, 55688416, 69610520, 139221040, 278442080]

約数ペア:

[(1, 278442080), (2, 139221040), (4, 69610520), (5, 55688416), (7, 39777440), (8, 34805260), (10, 27844208), (14, 19888720), (16, 17402630), (20, 13922104), (28, 9944360), (32, 8701315), (35, 7955488), (40, 6961052), (56, 4972180), (70, 3977744), (80, 3480526), (112, 2486090), (140, 1988872), (160, 1740263), (224, 1243045), (280, 994436), (560, 497218), (1120, 248609)]