20565295270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1231}}^1\times {\mathrm{128509}}^1$

素因数の和:129760

約数の個数: 32

約数和(自身を含む): 39897728640

約数和(自身を除く): 19332433370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1231, 2462, 6155, 12310, 16003, 32006, 80015, 128509, 160030, 257018, 642545, 1285090, 1670617, 3341234, 8353085, 16706170, 158194579, 316389158, 790972895, 1581945790, 2056529527, 4113059054, 10282647635, 20565295270]

約数ペア:

[(1, 20565295270), (2, 10282647635), (5, 4113059054), (10, 2056529527), (13, 1581945790), (26, 790972895), (65, 316389158), (130, 158194579), (1231, 16706170), (2462, 8353085), (6155, 3341234), (12310, 1670617), (16003, 1285090), (32006, 642545), (80015, 257018), (128509, 160030)]