25280775

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 51941120

約数和(自身を除く): 26660345

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 43, 45, 65, 67, 75, 117, 129, 135, 195, 201, 215, 225, 325, 335, 351, 387, 559, 585, 603, 645, 675, 871, 975, 1005, 1075, 1161, 1675, 1677, 1755, 1809, 1935, 2613, 2795, 2881, 2925, 3015, 3225, 4355, 5025, 5031, 5805, 7839, 8385, 8643, 8775, 9045, 9675, 13065, 13975, 14405, 15075, 15093, 21775, 23517, 25155, 25929, 29025, 37453, 39195, 41925, 43215, 45225, 65325, 72025, 75465, 77787, 112359, 117585, 125775, 129645, 187265, 195975, 216075, 337077, 377325, 388935, 561795, 587925, 648225, 936325, 1011231, 1685385, 1944675, 2808975, 5056155, 8426925, 25280775]

約数ペア:

[(1, 25280775), (3, 8426925), (5, 5056155), (9, 2808975), (13, 1944675), (15, 1685385), (25, 1011231), (27, 936325), (39, 648225), (43, 587925), (45, 561795), (65, 388935), (67, 377325), (75, 337077), (117, 216075), (129, 195975), (135, 187265), (195, 129645), (201, 125775), (215, 117585), (225, 112359), (325, 77787), (335, 75465), (351, 72025), (387, 65325), (559, 45225), (585, 43215), (603, 41925), (645, 39195), (675, 37453), (871, 29025), (975, 25929), (1005, 25155), (1075, 23517), (1161, 21775), (1675, 15093), (1677, 15075), (1755, 14405), (1809, 13975), (1935, 13065), (2613, 9675), (2795, 9045), (2881, 8775), (2925, 8643), (3015, 8385), (3225, 7839), (4355, 5805), (5025, 5031)]