66961895

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{787}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 114379776

約数和(自身を除く): 47417881

約数列:

[1, 5, 7, 11, 13, 17, 35, 55, 65, 77, 85, 91, 119, 143, 187, 221, 385, 455, 595, 715, 787, 935, 1001, 1105, 1309, 1547, 2431, 3935, 5005, 5509, 6545, 7735, 8657, 10231, 12155, 13379, 17017, 27545, 43285, 51155, 60599, 66895, 71617, 85085, 93653, 112541, 147169, 173927, 302995, 358085, 468265, 562705, 735845, 787787, 869635, 1030183, 1217489, 1913197, 3938935, 5150915, 6087445, 9565985, 13392379, 66961895]

約数ペア:

[(1, 66961895), (5, 13392379), (7, 9565985), (11, 6087445), (13, 5150915), (17, 3938935), (35, 1913197), (55, 1217489), (65, 1030183), (77, 869635), (85, 787787), (91, 735845), (119, 562705), (143, 468265), (187, 358085), (221, 302995), (385, 173927), (455, 147169), (595, 112541), (715, 93653), (787, 85085), (935, 71617), (1001, 66895), (1105, 60599), (1309, 51155), (1547, 43285), (2431, 27545), (3935, 17017), (5005, 13379), (5509, 12155), (6545, 10231), (7735, 8657)]