212740255

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{1523}}^1$

素因数の和:1855

約数の個数: 32

約数和(自身を含む): 315431424

約数和(自身を除く): 102691169

約数列:

[1, 5, 7, 13, 35, 65, 91, 307, 455, 1523, 1535, 2149, 3991, 7615, 10661, 10745, 19799, 19955, 27937, 53305, 98995, 138593, 139685, 467561, 692965, 2337805, 3272927, 6078293, 16364635, 30391465, 42548051, 212740255]

約数ペア:

[(1, 212740255), (5, 42548051), (7, 30391465), (13, 16364635), (35, 6078293), (65, 3272927), (91, 2337805), (307, 692965), (455, 467561), (1523, 139685), (1535, 138593), (2149, 98995), (3991, 53305), (7615, 27937), (10661, 19955), (10745, 19799)]