261730656005

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1\times {\mathrm{652931}}^1$

素因数の和:653837

約数の個数: 32

約数和(自身を含む): 386995408128

約数和(自身を除く): 125264752123

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 881, 4405, 6167, 11453, 30835, 57265, 80171, 400855, 652931, 3264655, 4570517, 8488103, 22852585, 42440515, 59416721, 297083605, 575232211, 2876161055, 4026625477, 7478018743, 20133127385, 37390093715, 52346131201, 261730656005]

約数ペア:

[(1, 261730656005), (5, 52346131201), (7, 37390093715), (13, 20133127385), (35, 7478018743), (65, 4026625477), (91, 2876161055), (455, 575232211), (881, 297083605), (4405, 59416721), (6167, 42440515), (11453, 22852585), (30835, 8488103), (57265, 4570517), (80171, 3264655), (400855, 652931)]