3981825

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{347}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 7767360

約数和(自身を除く): 3785535

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 135, 153, 225, 255, 347, 425, 459, 675, 765, 1041, 1275, 1735, 2295, 3123, 3825, 5205, 5899, 8675, 9369, 11475, 15615, 17697, 26025, 29495, 46845, 53091, 78075, 88485, 147475, 159273, 234225, 265455, 442425, 796365, 1327275, 3981825]

約数ペア:

[(1, 3981825), (3, 1327275), (5, 796365), (9, 442425), (15, 265455), (17, 234225), (25, 159273), (27, 147475), (45, 88485), (51, 78075), (75, 53091), (85, 46845), (135, 29495), (153, 26025), (225, 17697), (255, 15615), (347, 11475), (425, 9369), (459, 8675), (675, 5899), (765, 5205), (1041, 3825), (1275, 3123), (1735, 2295)]