309493415

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47287}}^1$

素因数の和:47327

約数の個数: 32

約数和(自身を含む): 490281984

約数和(自身を除く): 180788569

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 6545, 47287, 236435, 331009, 520157, 803879, 1655045, 2600785, 3641099, 4019395, 5627153, 8842669, 18205495, 28135765, 44213345, 61898683, 309493415]

約数ペア:

[(1, 309493415), (5, 61898683), (7, 44213345), (11, 28135765), (17, 18205495), (35, 8842669), (55, 5627153), (77, 4019395), (85, 3641099), (119, 2600785), (187, 1655045), (385, 803879), (595, 520157), (935, 331009), (1309, 236435), (6545, 47287)]