7140825

素因数分解:

$3^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 13392000

約数和(自身を除く): 6251175

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 135, 149, 213, 225, 355, 447, 639, 675, 745, 1065, 1341, 1775, 1917, 2235, 3195, 3725, 4023, 5325, 6705, 9585, 10579, 11175, 15975, 20115, 31737, 33525, 47925, 52895, 95211, 100575, 158685, 264475, 285633, 476055, 793425, 1428165, 2380275, 7140825]

約数ペア:

[(1, 7140825), (3, 2380275), (5, 1428165), (9, 793425), (15, 476055), (25, 285633), (27, 264475), (45, 158685), (71, 100575), (75, 95211), (135, 52895), (149, 47925), (213, 33525), (225, 31737), (355, 20115), (447, 15975), (639, 11175), (675, 10579), (745, 9585), (1065, 6705), (1341, 5325), (1775, 4023), (1917, 3725), (2235, 3195)]