205522405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{809}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 279936000

約数和(自身を除く): 74413595

約数列:

[1, 5, 11, 31, 55, 149, 155, 341, 745, 809, 1639, 1705, 4045, 4619, 8195, 8899, 23095, 25079, 44495, 50809, 120541, 125395, 254045, 275869, 602705, 1325951, 1379345, 3736771, 6629755, 18683855, 41104481, 205522405]

約数ペア:

[(1, 205522405), (5, 41104481), (11, 18683855), (31, 6629755), (55, 3736771), (149, 1379345), (155, 1325951), (341, 602705), (745, 275869), (809, 254045), (1639, 125395), (1705, 120541), (4045, 50809), (4619, 44495), (8195, 25079), (8899, 23095)]