20159768

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 38874000

約数和(自身を除く): 18714232

約数列:

[1, 2, 4, 8, 61, 109, 122, 218, 244, 379, 436, 488, 758, 872, 1516, 3032, 6649, 13298, 23119, 26596, 41311, 46238, 53192, 82622, 92476, 165244, 184952, 330488, 2519971, 5039942, 10079884, 20159768]

約数ペア:

[(1, 20159768), (2, 10079884), (4, 5039942), (8, 2519971), (61, 330488), (109, 184952), (122, 165244), (218, 92476), (244, 82622), (379, 53192), (436, 46238), (488, 41311), (758, 26596), (872, 23119), (1516, 13298), (3032, 6649)]