199725625

素因数分解:

$5^4\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:200

約数の個数: 60

約数和(自身を含む): 290844400

約数和(自身を除く): 91118775

約数列:

[1, 5, 11, 19, 25, 55, 95, 121, 125, 139, 209, 275, 475, 605, 625, 695, 1045, 1375, 1529, 2299, 2375, 2641, 3025, 3475, 5225, 6875, 7645, 11495, 11875, 13205, 15125, 16819, 17375, 26125, 29051, 38225, 57475, 66025, 75625, 84095, 86875, 130625, 145255, 191125, 287375, 319561, 330125, 420475, 726275, 955625, 1436875, 1597805, 1650625, 2102375, 3631375, 7989025, 10511875, 18156875, 39945125, 199725625]

約数ペア:

[(1, 199725625), (5, 39945125), (11, 18156875), (19, 10511875), (25, 7989025), (55, 3631375), (95, 2102375), (121, 1650625), (125, 1597805), (139, 1436875), (209, 955625), (275, 726275), (475, 420475), (605, 330125), (625, 319561), (695, 287375), (1045, 191125), (1375, 145255), (1529, 130625), (2299, 86875), (2375, 84095), (2641, 75625), (3025, 66025), (3475, 57475), (5225, 38225), (6875, 29051), (7645, 26125), (11495, 17375), (11875, 16819), (13205, 15125)]