15620990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20287}}^1$

素因数の和:20312

約数の個数: 32

約数和(自身を含む): 35057664

約数和(自身を除く): 19436674

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 20287, 40574, 101435, 142009, 202870, 223157, 284018, 446314, 710045, 1115785, 1420090, 1562099, 2231570, 3124198, 7810495, 15620990]

約数ペア:

[(1, 15620990), (2, 7810495), (5, 3124198), (7, 2231570), (10, 1562099), (11, 1420090), (14, 1115785), (22, 710045), (35, 446314), (55, 284018), (70, 223157), (77, 202870), (110, 142009), (154, 101435), (385, 40574), (770, 20287)]