7981875

素因数分解:

$3^3\times 5^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1$

素因数の和:83

約数の個数: 80

約数和(自身を含む): 16494720

約数和(自身を除く): 8512845

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 43, 45, 55, 75, 99, 125, 129, 135, 165, 215, 225, 275, 297, 375, 387, 473, 495, 625, 645, 675, 825, 1075, 1125, 1161, 1375, 1419, 1485, 1875, 1935, 2365, 2475, 3225, 3375, 4125, 4257, 5375, 5625, 5805, 6875, 7095, 7425, 9675, 11825, 12375, 12771, 16125, 16875, 20625, 21285, 26875, 29025, 35475, 37125, 48375, 59125, 61875, 63855, 80625, 106425, 145125, 177375, 185625, 241875, 295625, 319275, 532125, 725625, 886875, 1596375, 2660625, 7981875]

約数ペア:

[(1, 7981875), (3, 2660625), (5, 1596375), (9, 886875), (11, 725625), (15, 532125), (25, 319275), (27, 295625), (33, 241875), (43, 185625), (45, 177375), (55, 145125), (75, 106425), (99, 80625), (125, 63855), (129, 61875), (135, 59125), (165, 48375), (215, 37125), (225, 35475), (275, 29025), (297, 26875), (375, 21285), (387, 20625), (473, 16875), (495, 16125), (625, 12771), (645, 12375), (675, 11825), (825, 9675), (1075, 7425), (1125, 7095), (1161, 6875), (1375, 5805), (1419, 5625), (1485, 5375), (1875, 4257), (1935, 4125), (2365, 3375), (2475, 3225)]